Finding the Fourth Proportional to 56,755.43, 78,323.02 and 31,261.89

Step by Step Solution

1. Step 1: Write the proportion equation
   56,755.43 : 78,323.02 = 31,261.89 : x
2. Step 2: Convert to fraction form
   56,755.43/78,323.02 = 31,261.89/x
3. Step 3: Cross multiply
   56,755.43x = 78,323.02 × 31,261.89
4. Step 4: Simplify right side
   56,755.43x = 2,448,525,635.71
5. Step 5: Solve for x
   x = 2,448,525,635.71/56,755.43
6. Step 6: Final answer
   x = 43,141.70