Finding the Fourth Proportional to 16,131.71, 24,210.90 and 8,240.06

Step by Step Solution

1. Step 1: Write the proportion equation
   16,131.71 : 24,210.90 = 8,240.06 : x
2. Step 2: Convert to fraction form
   16,131.71/24,210.90 = 8,240.06/x
3. Step 3: Cross multiply
   16,131.71x = 24,210.90 × 8,240.06
4. Step 4: Simplify right side
   16,131.71x = 199,499,147.60
5. Step 5: Solve for x
   x = 199,499,147.60/16,131.71
6. Step 6: Final answer
   x = 12,366.90