Finding the Fourth Proportional to 16,391.69, 24,581.50 and 5,858.87

Step by Step Solution

1. Step 1: Write the proportion equation
   16,391.69 : 24,581.50 = 5,858.87 : x
2. Step 2: Convert to fraction form
   16,391.69/24,581.50 = 5,858.87/x
3. Step 3: Cross multiply
   16,391.69x = 24,581.50 × 5,858.87
4. Step 4: Simplify right side
   16,391.69x = 144,019,675.35
5. Step 5: Solve for x
   x = 144,019,675.35/16,391.69
6. Step 6: Final answer
   x = 8,786.14