Finding the Fourth Proportional to 25,128.63, 34,672.46 and 14,515.61

Step by Step Solution

1. Step 1: Write the proportion equation
   25,128.63 : 34,672.46 = 14,515.61 : x
2. Step 2: Convert to fraction form
   25,128.63/34,672.46 = 14,515.61/x
3. Step 3: Cross multiply
   25,128.63x = 34,672.46 × 14,515.61
4. Step 4: Simplify right side
   25,128.63x = 503,291,661.16
5. Step 5: Solve for x
   x = 503,291,661.16/25,128.63
6. Step 6: Final answer
   x = 20,028.62