Finding the Fourth Proportional to 271,498.50, 407,306.24 and 81,943

Step by Step Solution

1. Step 1: Write the proportion equation
   271,498.50 : 407,306.24 = 81,943 : x
2. Step 2: Convert to fraction form
   271,498.50/407,306.24 = 81,943/x
3. Step 3: Cross multiply
   271,498.50x = 407,306.24 × 81,943
4. Step 4: Simplify right side
   271,498.50x = 33,375,895,224.32
5. Step 5: Solve for x
   x = 33,375,895,224.32/271,498.50
6. Step 6: Final answer
   x = 122,932.15