1. **Stating the problem:** Calculate 25% of 58,458. 2. **Formula used:** To find a percentage of a number, use the formula: $$\text{Percentage value} = \frac{\text{Percentage}}{100} \times \text{Total number}$$ 3. **Applying the formula:** $$25\% = \frac{25}{100} = 0.25$$ 4. **Calculate:** $$0.25 \times 58,458 = 14,614.5$$ 5. **Explanation:** Multiplying 58,458 by 0.25 gives the value that is 25% of 58,458. **Final answer:** $$\boxed{14,614.5}$$