Finding the Fourth Proportional to 92,773.70, 139,034.67 and 42,743.78

Step by Step Solution

1. Step 1: Write the proportion equation
   92,773.70 : 139,034.67 = 42,743.78 : x
2. Step 2: Convert to fraction form
   92,773.70/139,034.67 = 42,743.78/x
3. Step 3: Cross multiply
   92,773.70x = 139,034.67 × 42,743.78
4. Step 4: Simplify right side
   92,773.70x = 5,942,867,346.85
5. Step 5: Solve for x
   x = 5,942,867,346.85/92,773.70
6. Step 6: Final answer
   x = 64,057.67