Finding the Fourth Proportional to 138,077.92, 206,943.12 and 59,098.72

Step by Step Solution

1. Step 1: Write the proportion equation
   138,077.92 : 206,943.12 = 59,098.72 : x
2. Step 2: Convert to fraction form
   138,077.92/206,943.12 = 59,098.72/x
3. Step 3: Cross multiply
   138,077.92x = 206,943.12 × 59,098.72
4. Step 4: Simplify right side
   138,077.92x = 12,230,073,504.81
5. Step 5: Solve for x
   x = 12,230,073,504.81/138,077.92
6. Step 6: Final answer
   x = 88,573.71