Finding the Fourth Proportional to 92,092.38, 138,138.56 and 60,920.34

Step by Step Solution

1. Step 1: Write the proportion equation
   92,092.38 : 138,138.56 = 60,920.34 : x
2. Step 2: Convert to fraction form
   92,092.38/138,138.56 = 60,920.34/x
3. Step 3: Cross multiply
   92,092.38x = 138,138.56 × 60,920.34
4. Step 4: Simplify right side
   92,092.38x = 8,415,448,042.31
5. Step 5: Solve for x
   x = 8,415,448,042.31/92,092.38
6. Step 6: Final answer
   x = 91,380.50