Finding the Fourth Proportional to 127,940.50, 176,557.89 and 71,351.88

Step by Step Solution

1. Step 1: Write the proportion equation
   127,940.50 : 176,557.89 = 71,351.88 : x
2. Step 2: Convert to fraction form
   127,940.50/176,557.89 = 71,351.88/x
3. Step 3: Cross multiply
   127,940.50x = 176,557.89 × 71,351.88
4. Step 4: Simplify right side
   127,940.50x = 12,597,737,380.33
5. Step 5: Solve for x
   x = 12,597,737,380.33/127,940.50
6. Step 6: Final answer
   x = 98,465.59