Finding the Fourth Proportional to 63,931.47, 88,263.23 and 56,838.27

Step by Step Solution

1. Step 1: Write the proportion equation
   63,931.47 : 88,263.23 = 56,838.27 : x
2. Step 2: Convert to fraction form
   63,931.47/88,263.23 = 56,838.27/x
3. Step 3: Cross multiply
   63,931.47x = 88,263.23 × 56,838.27
4. Step 4: Simplify right side
   63,931.47x = 5,016,729,108.92
5. Step 5: Solve for x
   x = 5,016,729,108.92/63,931.47
6. Step 6: Final answer
   x = 78,470.42