Finding the Fourth Proportional to 9,050.31, 12,472.52 and 7,057.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,050.31 : 12,472.52 = 7,057.71 : x
2. Step 2: Convert to fraction form
   9,050.31/12,472.52 = 7,057.71/x
3. Step 3: Cross multiply
   9,050.31x = 12,472.52 × 7,057.71
4. Step 4: Simplify right side
   9,050.31x = 88,027,393.84
5. Step 5: Solve for x
   x = 88,027,393.84/9,050.31
6. Step 6: Final answer
   x = 9,726.45