Finding the Fourth Proportional to 127,683.78, 176,192.73 and 71,100.42

Step by Step Solution

1. Step 1: Write the proportion equation
   127,683.78 : 176,192.73 = 71,100.42 : x
2. Step 2: Convert to fraction form
   127,683.78/176,192.73 = 71,100.42/x
3. Step 3: Cross multiply
   127,683.78x = 176,192.73 × 71,100.42
4. Step 4: Simplify right side
   127,683.78x = 12,527,377,103.95
5. Step 5: Solve for x
   x = 12,527,377,103.95/127,683.78
6. Step 6: Final answer
   x = 98,112.52