Finding the Fourth Proportional to 56,737.92, 78,297.69 and 31,243.78

Step by Step Solution

1. Step 1: Write the proportion equation
   56,737.92 : 78,297.69 = 31,243.78 : x
2. Step 2: Convert to fraction form
   56,737.92/78,297.69 = 31,243.78/x
3. Step 3: Cross multiply
   56,737.92x = 78,297.69 × 31,243.78
4. Step 4: Simplify right side
   56,737.92x = 2,446,315,399.73
5. Step 5: Solve for x
   x = 2,446,315,399.73/56,737.92
6. Step 6: Final answer
   x = 43,116.06