Finding the Fourth Proportional to 25,469.83, 35,146.42 and 14,138.28

Step by Step Solution

1. Step 1: Write the proportion equation
   25,469.83 : 35,146.42 = 14,138.28 : x
2. Step 2: Convert to fraction form
   25,469.83/35,146.42 = 14,138.28/x
3. Step 3: Cross multiply
   25,469.83x = 35,146.42 × 14,138.28
4. Step 4: Simplify right side
   25,469.83x = 496,909,891.61
5. Step 5: Solve for x
   x = 496,909,891.61/25,469.83
6. Step 6: Final answer
   x = 19,509.74