Finding the Fourth Proportional to 16,032.16, 22,123.56 and 8,957.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,032.16 : 22,123.56 = 8,957.20 : x
2. Step 2: Convert to fraction form
   16,032.16/22,123.56 = 8,957.20/x
3. Step 3: Cross multiply
   16,032.16x = 22,123.56 × 8,957.20
4. Step 4: Simplify right side
   16,032.16x = 198,165,151.63
5. Step 5: Solve for x
   x = 198,165,151.63/16,032.16
6. Step 6: Final answer
   x = 12,360.48