Finding the Fourth Proportional to 127,978.30, 192,053.85 and 83,496.70

Step by Step Solution

1. Step 1: Write the proportion equation
   127,978.30 : 192,053.85 = 83,496.70 : x
2. Step 2: Convert to fraction form
   127,978.30/192,053.85 = 83,496.70/x
3. Step 3: Cross multiply
   127,978.30x = 192,053.85 × 83,496.70
4. Step 4: Simplify right side
   127,978.30x = 16,035,862,697.30
5. Step 5: Solve for x
   x = 16,035,862,697.30/127,978.30
6. Step 6: Final answer
   x = 125,301.42