Finding the Fourth Proportional to 123,850.27, 170,984.22 and 81,531.82

Step by Step Solution

1. Step 1: Write the proportion equation
   123,850.27 : 170,984.22 = 81,531.82 : x
2. Step 2: Convert to fraction form
   123,850.27/170,984.22 = 81,531.82/x
3. Step 3: Cross multiply
   123,850.27x = 170,984.22 × 81,531.82
4. Step 4: Simplify right side
   123,850.27x = 13,940,654,647.88
5. Step 5: Solve for x
   x = 13,940,654,647.88/123,850.27
6. Step 6: Final answer
   x = 112,560.55