Finding the Fourth Proportional to 9,057.72, 12,493.89 and 6,543.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,057.72 : 12,493.89 = 6,543.52 : x
2. Step 2: Convert to fraction form
   9,057.72/12,493.89 = 6,543.52/x
3. Step 3: Cross multiply
   9,057.72x = 12,493.89 × 6,543.52
4. Step 4: Simplify right side
   9,057.72x = 81,754,059.25
5. Step 5: Solve for x
   x = 81,754,059.25/9,057.72
6. Step 6: Final answer
   x = 9,025.90