Finding the Fourth Proportional to 9,057.56, 13,571.67 and 7,414.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,057.56 : 13,571.67 = 7,414.88 : x
2. Step 2: Convert to fraction form
   9,057.56/13,571.67 = 7,414.88/x
3. Step 3: Cross multiply
   9,057.56x = 13,571.67 × 7,414.88
4. Step 4: Simplify right side
   9,057.56x = 100,632,304.45
5. Step 5: Solve for x
   x = 100,632,304.45/9,057.56
6. Step 6: Final answer
   x = 11,110.31