Finding the Fourth Proportional to 16,224.31, 22,389.10 and 9,151.39

Step by Step Solution

1. Step 1: Write the proportion equation
   16,224.31 : 22,389.10 = 9,151.39 : x
2. Step 2: Convert to fraction form
   16,224.31/22,389.10 = 9,151.39/x
3. Step 3: Cross multiply
   16,224.31x = 22,389.10 × 9,151.39
4. Step 4: Simplify right side
   16,224.31x = 204,891,385.85
5. Step 5: Solve for x
   x = 204,891,385.85/16,224.31
6. Step 6: Final answer
   x = 12,628.67