Finding the Fourth Proportional to 25,559.25, 35,272.55 and 13,918.24

Step by Step Solution

1. Step 1: Write the proportion equation
   25,559.25 : 35,272.55 = 13,918.24 : x
2. Step 2: Convert to fraction form
   25,559.25/35,272.55 = 13,918.24/x
3. Step 3: Cross multiply
   25,559.25x = 35,272.55 × 13,918.24
4. Step 4: Simplify right side
   25,559.25x = 490,931,658.54
5. Step 5: Solve for x
   x = 490,931,658.54/25,559.25
6. Step 6: Final answer
   x = 19,207.59