What does Proverbs 27:24 mean?

In the most direct sense, Solomon (Proverbs 25:1) continues to note the importance of good stewardship (Proverbs 27:23). A sensible man cares for his resources so they'll continue to grow and flourish. That requires attention and diligence. It's unwise to assume that whatever a person has built up will last forever. Disaster can happen, and earthly wealth can be lost (Proverbs 23:4–5).

The question asked here is rhetorical: the answer is assumed to be "no." Kings and kingdoms are not permanent. This is demonstrated in the Old Testament's many wars and coups. The point of these lessons is that attentive care for one's resources—illustrated through ranching—provides a more secure future. Resting on one's existing wealth, or failing to care for existing resources, can lead to ruin.

Paul asked Timothy to caution church members by telling them riches are an insecure investment. In 1 Timothy 6:17 he writes, "As for the rich in this present age, charge them not to be haughty, nor to set their hopes on the uncertainty of riches, but on God who richly provides us with everything to enjoy." He had previously told Timothy "those who desire to be rich fall into temptation, into a snare, into many senseless and harmful desires that plunge people into ruin and destruction." He insists, "The love of money is a root of all kinds of evils" (1 Timothy 6:9–10).