Finding the Fourth Proportional to 82,143.12, 123,229.85 and 25,997.34

Step by Step Solution

1. Step 1: Write the proportion equation
   82,143.12 : 123,229.85 = 25,997.34 : x
2. Step 2: Convert to fraction form
   82,143.12/123,229.85 = 25,997.34/x
3. Step 3: Cross multiply
   82,143.12x = 123,229.85 × 25,997.34
4. Step 4: Simplify right side
   82,143.12x = 3,203,648,178.61
5. Step 5: Solve for x
   x = 3,203,648,178.61/82,143.12
6. Step 6: Final answer
   x = 39,000.81