Finding the Fourth Proportional to 56,909.88, 78,535.56 and 31,759.38

Step by Step Solution

1. Step 1: Write the proportion equation
   56,909.88 : 78,535.56 = 31,759.38 : x
2. Step 2: Convert to fraction form
   56,909.88/78,535.56 = 31,759.38/x
3. Step 3: Cross multiply
   56,909.88x = 78,535.56 × 31,759.38
4. Step 4: Simplify right side
   56,909.88x = 2,494,240,693.55
5. Step 5: Solve for x
   x = 2,494,240,693.55/56,909.88
6. Step 6: Final answer
   x = 43,827.90