Finding the Fourth Proportional to 127,194.30, 190,665.90 and 71,061.30

Step by Step Solution

1. Step 1: Write the proportion equation
   127,194.30 : 190,665.90 = 71,061.30 : x
2. Step 2: Convert to fraction form
   127,194.30/190,665.90 = 71,061.30/x
3. Step 3: Cross multiply
   127,194.30x = 190,665.90 × 71,061.30
4. Step 4: Simplify right side
   127,194.30x = 13,548,966,719.67
5. Step 5: Solve for x
   x = 13,548,966,719.67/127,194.30
6. Step 6: Final answer
   x = 106,521.81