Finding the Fourth Proportional to 82,261.85, 123,399.18 and 26,105.15

Step by Step Solution

1. Step 1: Write the proportion equation
   82,261.85 : 123,399.18 = 26,105.15 : x
2. Step 2: Convert to fraction form
   82,261.85/123,399.18 = 26,105.15/x
3. Step 3: Cross multiply
   82,261.85x = 123,399.18 × 26,105.15
4. Step 4: Simplify right side
   82,261.85x = 3,221,354,412.27
5. Step 5: Solve for x
   x = 3,221,354,412.27/82,261.85
6. Step 6: Final answer
   x = 39,159.76