Finding the Fourth Proportional to 25,086.72, 34,618.08 and 13,908

Step by Step Solution

1. Step 1: Write the proportion equation
   25,086.72 : 34,618.08 = 13,908 : x
2. Step 2: Convert to fraction form
   25,086.72/34,618.08 = 13,908/x
3. Step 3: Cross multiply
   25,086.72x = 34,618.08 × 13,908
4. Step 4: Simplify right side
   25,086.72x = 481,468,256.64
5. Step 5: Solve for x
   x = 481,468,256.64/25,086.72
6. Step 6: Final answer
   x = 19,192.16