Finding the Fourth Proportional to 82,723.26, 123,149.31 and 82,231.19

Step by Step Solution

1. Step 1: Write the proportion equation
   82,723.26 : 123,149.31 = 82,231.19 : x
2. Step 2: Convert to fraction form
   82,723.26/123,149.31 = 82,231.19/x
3. Step 3: Cross multiply
   82,723.26x = 123,149.31 × 82,231.19
4. Step 4: Simplify right side
   82,723.26x = 10,126,713,693.23
5. Step 5: Solve for x
   x = 10,126,713,693.23/82,723.26
6. Step 6: Final answer
   x = 122,416.76