Finding the Fourth Proportional to 56,917.05, 78,545.50 and 31,766.55

Step by Step Solution

1. Step 1: Write the proportion equation
   56,917.05 : 78,545.50 = 31,766.55 : x
2. Step 2: Convert to fraction form
   56,917.05/78,545.50 = 31,766.55/x
3. Step 3: Cross multiply
   56,917.05x = 78,545.50 × 31,766.55
4. Step 4: Simplify right side
   56,917.05x = 2,495,119,553.03
5. Step 5: Solve for x
   x = 2,495,119,553.03/56,917.05
6. Step 6: Final answer
   x = 43,837.82