Finding the Fourth Proportional to 16,478.39, 24,720.77 and 5,382.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,478.39 : 24,720.77 = 5,382.10 : x
2. Step 2: Convert to fraction form
   16,478.39/24,720.77 = 5,382.10/x
3. Step 3: Cross multiply
   16,478.39x = 24,720.77 × 5,382.10
4. Step 4: Simplify right side
   16,478.39x = 133,049,505.70
5. Step 5: Solve for x
   x = 133,049,505.70/16,478.39
6. Step 6: Final answer
   x = 8,074.18