Finding the Fourth Proportional to 82,747.56, 123,185.40 and 82,255.48

Step by Step Solution

1. Step 1: Write the proportion equation
   82,747.56 : 123,185.40 = 82,255.48 : x
2. Step 2: Convert to fraction form
   82,747.56/123,185.40 = 82,255.48/x
3. Step 3: Cross multiply
   82,747.56x = 123,185.40 × 82,255.48
4. Step 4: Simplify right side
   82,747.56x = 10,132,674,205.99
5. Step 5: Solve for x
   x = 10,132,674,205.99/82,747.56
6. Step 6: Final answer
   x = 122,452.85