Finding the Fourth Proportional to 16,519.27, 24,781.99 and 5,429.15

Step by Step Solution

1. Step 1: Write the proportion equation
   16,519.27 : 24,781.99 = 5,429.15 : x
2. Step 2: Convert to fraction form
   16,519.27/24,781.99 = 5,429.15/x
3. Step 3: Cross multiply
   16,519.27x = 24,781.99 × 5,429.15
4. Step 4: Simplify right side
   16,519.27x = 134,545,141.01
5. Step 5: Solve for x
   x = 134,545,141.01/16,519.27
6. Step 6: Final answer
   x = 8,144.74