Finding the Fourth Proportional to 56,908.50, 78,535.35 and 31,759.62

Step by Step Solution

1. Step 1: Write the proportion equation
   56,908.50 : 78,535.35 = 31,759.62 : x
2. Step 2: Convert to fraction form
   56,908.50/78,535.35 = 31,759.62/x
3. Step 3: Cross multiply
   56,908.50x = 78,535.35 × 31,759.62
4. Step 4: Simplify right side
   56,908.50x = 2,494,252,872.57
5. Step 5: Solve for x
   x = 2,494,252,872.57/56,908.50
6. Step 6: Final answer
   x = 43,829.18