Finding the Fourth Proportional to 127,730.55, 176,273.61 and 71,141.91

Step by Step Solution

1. Step 1: Write the proportion equation
   127,730.55 : 176,273.61 = 71,141.91 : x
2. Step 2: Convert to fraction form
   127,730.55/176,273.61 = 71,141.91/x
3. Step 3: Cross multiply
   127,730.55x = 176,273.61 × 71,141.91
4. Step 4: Simplify right side
   127,730.55x = 12,540,441,298.00
5. Step 5: Solve for x
   x = 12,540,441,298.00/127,730.55
6. Step 6: Final answer
   x = 98,178.87