Finding the Fourth Proportional to 25,239.78, 34,830.42 and 13,910.33

Step by Step Solution

1. Step 1: Write the proportion equation
   25,239.78 : 34,830.42 = 13,910.33 : x
2. Step 2: Convert to fraction form
   25,239.78/34,830.42 = 13,910.33/x
3. Step 3: Cross multiply
   25,239.78x = 34,830.42 × 13,910.33
4. Step 4: Simplify right side
   25,239.78x = 484,502,462.09
5. Step 5: Solve for x
   x = 484,502,462.09/25,239.78
6. Step 6: Final answer
   x = 19,195.99