Finding the Fourth Proportional to 103,627.24, 155,265.90 and 82,807

Step by Step Solution

1. Step 1: Write the proportion equation
   103,627.24 : 155,265.90 = 82,807 : x
2. Step 2: Convert to fraction form
   103,627.24/155,265.90 = 82,807/x
3. Step 3: Cross multiply
   103,627.24x = 155,265.90 × 82,807
4. Step 4: Simplify right side
   103,627.24x = 12,857,103,381.30
5. Step 5: Solve for x
   x = 12,857,103,381.30/103,627.24
6. Step 6: Final answer
   x = 124,070.69