Finding the Fourth Proportional to 16,499.16, 22,771.13 and 9,425.43

Step by Step Solution

1. Step 1: Write the proportion equation
   16,499.16 : 22,771.13 = 9,425.43 : x
2. Step 2: Convert to fraction form
   16,499.16/22,771.13 = 9,425.43/x
3. Step 3: Cross multiply
   16,499.16x = 22,771.13 × 9,425.43
4. Step 4: Simplify right side
   16,499.16x = 214,627,644.71
5. Step 5: Solve for x
   x = 214,627,644.71/16,499.16
6. Step 6: Final answer
   x = 13,008.40