Finding the Fourth Proportional to 103,617.15, 155,166.52 and 82,881.15

Step by Step Solution

1. Step 1: Write the proportion equation
   103,617.15 : 155,166.52 = 82,881.15 : x
2. Step 2: Convert to fraction form
   103,617.15/155,166.52 = 82,881.15/x
3. Step 3: Cross multiply
   103,617.15x = 155,166.52 × 82,881.15
4. Step 4: Simplify right side
   103,617.15x = 12,860,379,619.10
5. Step 5: Solve for x
   x = 12,860,379,619.10/103,617.15
6. Step 6: Final answer
   x = 124,114.39