Finding the Fourth Proportional to 10,854.52, 16,282.89 and 2,957.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,854.52 : 16,282.89 = 2,957.20 : x
2. Step 2: Convert to fraction form
   10,854.52/16,282.89 = 2,957.20/x
3. Step 3: Cross multiply
   10,854.52x = 16,282.89 × 2,957.20
4. Step 4: Simplify right side
   10,854.52x = 48,151,762.31
5. Step 5: Solve for x
   x = 48,151,762.31/10,854.52
6. Step 6: Final answer
   x = 4,436.10