Finding the Fourth Proportional to 82,309.61, 123,451.55 and 26,142.33

Step by Step Solution

1. Step 1: Write the proportion equation
   82,309.61 : 123,451.55 = 26,142.33 : x
2. Step 2: Convert to fraction form
   82,309.61/123,451.55 = 26,142.33/x
3. Step 3: Cross multiply
   82,309.61x = 123,451.55 × 26,142.33
4. Step 4: Simplify right side
   82,309.61x = 3,227,311,589.38
5. Step 5: Solve for x
   x = 3,227,311,589.38/82,309.61
6. Step 6: Final answer
   x = 39,209.41