Finding the Fourth Proportional to 103,622.15, 155,174.02 and 82,886.15

Step by Step Solution

1. Step 1: Write the proportion equation
   103,622.15 : 155,174.02 = 82,886.15 : x
2. Step 2: Convert to fraction form
   103,622.15/155,174.02 = 82,886.15/x
3. Step 3: Cross multiply
   103,622.15x = 155,174.02 × 82,886.15
4. Step 4: Simplify right side
   103,622.15x = 12,861,777,097.82
5. Step 5: Solve for x
   x = 12,861,777,097.82/103,622.15
6. Step 6: Final answer
   x = 124,121.89