Finding the Fourth Proportional to 25,087.15, 34,621.82 and 13,909.15

Step by Step Solution

1. Step 1: Write the proportion equation
   25,087.15 : 34,621.82 = 13,909.15 : x
2. Step 2: Convert to fraction form
   25,087.15/34,621.82 = 13,909.15/x
3. Step 3: Cross multiply
   25,087.15x = 34,621.82 × 13,909.15
4. Step 4: Simplify right side
   25,087.15x = 481,560,087.65
5. Step 5: Solve for x
   x = 481,560,087.65/25,087.15
6. Step 6: Final answer
   x = 19,195.49