Finding the Fourth Proportional to 9,057.92, 12,494.62 and 5,695.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,057.92 : 12,494.62 = 5,695.40 : x
2. Step 2: Convert to fraction form
   9,057.92/12,494.62 = 5,695.40/x
3. Step 3: Cross multiply
   9,057.92x = 12,494.62 × 5,695.40
4. Step 4: Simplify right side
   9,057.92x = 71,161,830.27
5. Step 5: Solve for x
   x = 71,161,830.27/9,057.92
6. Step 6: Final answer
   x = 7,856.31