Finding the Fourth Proportional to 56,911.42, 78,545.20 and 31,766.14

Step by Step Solution

1. Step 1: Write the proportion equation
   56,911.42 : 78,545.20 = 31,766.14 : x
2. Step 2: Convert to fraction form
   56,911.42/78,545.20 = 31,766.14/x
3. Step 3: Cross multiply
   56,911.42x = 78,545.20 × 31,766.14
4. Step 4: Simplify right side
   56,911.42x = 2,495,077,819.53
5. Step 5: Solve for x
   x = 2,495,077,819.53/56,911.42
6. Step 6: Final answer
   x = 43,841.43