Finding the Fourth Proportional to 57,124.55, 78,831.96 and 31,282.98

Step by Step Solution

1. Step 1: Write the proportion equation
   57,124.55 : 78,831.96 = 31,282.98 : x
2. Step 2: Convert to fraction form
   57,124.55/78,831.96 = 31,282.98/x
3. Step 3: Cross multiply
   57,124.55x = 78,831.96 × 31,282.98
4. Step 4: Simplify right side
   57,124.55x = 2,466,098,628.04
5. Step 5: Solve for x
   x = 2,466,098,628.04/57,124.55
6. Step 6: Final answer
   x = 43,170.56