Finding the Fourth Proportional to 92,308.38, 138,751.59 and 60,920.15

Step by Step Solution

1. Step 1: Write the proportion equation
   92,308.38 : 138,751.59 = 60,920.15 : x
2. Step 2: Convert to fraction form
   92,308.38/138,751.59 = 60,920.15/x
3. Step 3: Cross multiply
   92,308.38x = 138,751.59 × 60,920.15
4. Step 4: Simplify right side
   92,308.38x = 8,452,766,981.78
5. Step 5: Solve for x
   x = 8,452,766,981.78/92,308.38
6. Step 6: Final answer
   x = 91,570.96