Finding the Fourth Proportional to 25,315.72, 34,935.78 and 14,137.72

Step by Step Solution

1. Step 1: Write the proportion equation
   25,315.72 : 34,935.78 = 14,137.72 : x
2. Step 2: Convert to fraction form
   25,315.72/34,935.78 = 14,137.72/x
3. Step 3: Cross multiply
   25,315.72x = 34,935.78 × 14,137.72
4. Step 4: Simplify right side
   25,315.72x = 493,912,275.62
5. Step 5: Solve for x
   x = 493,912,275.62/25,315.72
6. Step 6: Final answer
   x = 19,510.10