Finding the Fourth Proportional to 92,770.97, 139,042.41 and 42,781.67

Step by Step Solution

1. Step 1: Write the proportion equation
   92,770.97 : 139,042.41 = 42,781.67 : x
2. Step 2: Convert to fraction form
   92,770.97/139,042.41 = 42,781.67/x
3. Step 3: Cross multiply
   92,770.97x = 139,042.41 × 42,781.67
4. Step 4: Simplify right side
   92,770.97x = 5,948,466,500.62
5. Step 5: Solve for x
   x = 5,948,466,500.62/92,770.97
6. Step 6: Final answer
   x = 64,119.91