Finding the Fourth Proportional to 103,618.15, 155,168.02 and 82,882.15

Step by Step Solution

1. Step 1: Write the proportion equation
   103,618.15 : 155,168.02 = 82,882.15 : x
2. Step 2: Convert to fraction form
   103,618.15/155,168.02 = 82,882.15/x
3. Step 3: Cross multiply
   103,618.15x = 155,168.02 × 82,882.15
4. Step 4: Simplify right side
   103,618.15x = 12,860,659,108.84
5. Step 5: Solve for x
   x = 12,860,659,108.84/103,618.15
6. Step 6: Final answer
   x = 124,115.89