Finding the Fourth Proportional to 25,107.72, 34,650.22 and 13,929.72

Step by Step Solution

1. Step 1: Write the proportion equation
   25,107.72 : 34,650.22 = 13,929.72 : x
2. Step 2: Convert to fraction form
   25,107.72/34,650.22 = 13,929.72/x
3. Step 3: Cross multiply
   25,107.72x = 34,650.22 × 13,929.72
4. Step 4: Simplify right side
   25,107.72x = 482,667,862.54
5. Step 5: Solve for x
   x = 482,667,862.54/25,107.72
6. Step 6: Final answer
   x = 19,223.88