Finding the Fourth Proportional to 105,307.39, 157,920.59 and 82,862.24

Step by Step Solution

1. Step 1: Write the proportion equation
   105,307.39 : 157,920.59 = 82,862.24 : x
2. Step 2: Convert to fraction form
   105,307.39/157,920.59 = 82,862.24/x
3. Step 3: Cross multiply
   105,307.39x = 157,920.59 × 82,862.24
4. Step 4: Simplify right side
   105,307.39x = 13,085,653,669.28
5. Step 5: Solve for x
   x = 13,085,653,669.28/105,307.39
6. Step 6: Final answer
   x = 124,261.49