Finding the Fourth Proportional to 25,086.72, 34,616.26 and 15,012.82

Step by Step Solution

1. Step 1: Write the proportion equation
   25,086.72 : 34,616.26 = 15,012.82 : x
2. Step 2: Convert to fraction form
   25,086.72/34,616.26 = 15,012.82/x
3. Step 3: Cross multiply
   25,086.72x = 34,616.26 × 15,012.82
4. Step 4: Simplify right side
   25,086.72x = 519,687,680.45
5. Step 5: Solve for x
   x = 519,687,680.45/25,086.72
6. Step 6: Final answer
   x = 20,715.65