Finding the Fourth Proportional to 82,469.69, 123,724.68 and 26,309.80

Step by Step Solution

1. Step 1: Write the proportion equation
   82,469.69 : 123,724.68 = 26,309.80 : x
2. Step 2: Convert to fraction form
   82,469.69/123,724.68 = 26,309.80/x
3. Step 3: Cross multiply
   82,469.69x = 123,724.68 × 26,309.80
4. Step 4: Simplify right side
   82,469.69x = 3,255,171,585.86
5. Step 5: Solve for x
   x = 3,255,171,585.86/82,469.69
6. Step 6: Final answer
   x = 39,471.13