Finding the Fourth Proportional to 82,142.91, 123,229.53 and 25,997.13

Step by Step Solution

1. Step 1: Write the proportion equation
   82,142.91 : 123,229.53 = 25,997.13 : x
2. Step 2: Convert to fraction form
   82,142.91/123,229.53 = 25,997.13/x
3. Step 3: Cross multiply
   82,142.91x = 123,229.53 × 25,997.13
4. Step 4: Simplify right side
   82,142.91x = 3,203,614,111.25
5. Step 5: Solve for x
   x = 3,203,614,111.25/82,142.91
6. Step 6: Final answer
   x = 39,000.49