Finding the Fourth Proportional to 82,723.25, 123,149.37 and 82,231.17

Step by Step Solution

1. Step 1: Write the proportion equation
   82,723.25 : 123,149.37 = 82,231.17 : x
2. Step 2: Convert to fraction form
   82,723.25/123,149.37 = 82,231.17/x
3. Step 3: Cross multiply
   82,723.25x = 123,149.37 × 82,231.17
4. Step 4: Simplify right side
   82,723.25x = 10,126,716,779.86
5. Step 5: Solve for x
   x = 10,126,716,779.86/82,723.25
6. Step 6: Final answer
   x = 122,416.82