Finding the Fourth Proportional to 16,200.72, 22,355.28 and 9,127.08

Step by Step Solution

1. Step 1: Write the proportion equation
   16,200.72 : 22,355.28 = 9,127.08 : x
2. Step 2: Convert to fraction form
   16,200.72/22,355.28 = 9,127.08/x
3. Step 3: Cross multiply
   16,200.72x = 22,355.28 × 9,127.08
4. Step 4: Simplify right side
   16,200.72x = 204,038,428.98
5. Step 5: Solve for x
   x = 204,038,428.98/16,200.72
6. Step 6: Final answer
   x = 12,594.41