Finding the Fourth Proportional to 82,142.87, 123,229.47 and 25,997.09

Step by Step Solution

1. Step 1: Write the proportion equation
   82,142.87 : 123,229.47 = 25,997.09 : x
2. Step 2: Convert to fraction form
   82,142.87/123,229.47 = 25,997.09/x
3. Step 3: Cross multiply
   82,142.87x = 123,229.47 × 25,997.09
4. Step 4: Simplify right side
   82,142.87x = 3,203,607,622.24
5. Step 5: Solve for x
   x = 3,203,607,622.24/82,142.87
6. Step 6: Final answer
   x = 39,000.43