Finding the Fourth Proportional to 127,342.80, 191,100.60 and 82,861.20

Step by Step Solution

1. Step 1: Write the proportion equation
   127,342.80 : 191,100.60 = 82,861.20 : x
2. Step 2: Convert to fraction form
   127,342.80/191,100.60 = 82,861.20/x
3. Step 3: Cross multiply
   127,342.80x = 191,100.60 × 82,861.20
4. Step 4: Simplify right side
   127,342.80x = 15,834,825,036.72
5. Step 5: Solve for x
   x = 15,834,825,036.72/127,342.80
6. Step 6: Final answer
   x = 124,348.02