Finding the Fourth Proportional to 25,086.12, 34,618.74 and 13,908.12

Step by Step Solution

1. Step 1: Write the proportion equation
   25,086.12 : 34,618.74 = 13,908.12 : x
2. Step 2: Convert to fraction form
   25,086.12/34,618.74 = 13,908.12/x
3. Step 3: Cross multiply
   25,086.12x = 34,618.74 × 13,908.12
4. Step 4: Simplify right side
   25,086.12x = 481,481,590.17
5. Step 5: Solve for x
   x = 481,481,590.17/25,086.12
6. Step 6: Final answer
   x = 19,193.15