Finding the Fourth Proportional to 123,863.41, 171,002.33 and 81,544.96

Step by Step Solution

1. Step 1: Write the proportion equation
   123,863.41 : 171,002.33 = 81,544.96 : x
2. Step 2: Convert to fraction form
   123,863.41/171,002.33 = 81,544.96/x
3. Step 3: Cross multiply
   123,863.41x = 171,002.33 × 81,544.96
4. Step 4: Simplify right side
   123,863.41x = 13,944,377,752.03
5. Step 5: Solve for x
   x = 13,944,377,752.03/123,863.41
6. Step 6: Final answer
   x = 112,578.67