Finding the Fourth Proportional to 127,695.15, 176,214.56 and 71,105.31

Step by Step Solution

1. Step 1: Write the proportion equation
   127,695.15 : 176,214.56 = 71,105.31 : x
2. Step 2: Convert to fraction form
   127,695.15/176,214.56 = 71,105.31/x
3. Step 3: Cross multiply
   127,695.15x = 176,214.56 × 71,105.31
4. Step 4: Simplify right side
   127,695.15x = 12,529,790,559.79
5. Step 5: Solve for x
   x = 12,529,790,559.79/127,695.15
6. Step 6: Final answer
   x = 98,122.68