Finding the Fourth Proportional to 25,198.74, 34,774.25 and 13,869

Step by Step Solution

1. Step 1: Write the proportion equation
   25,198.74 : 34,774.25 = 13,869 : x
2. Step 2: Convert to fraction form
   25,198.74/34,774.25 = 13,869/x
3. Step 3: Cross multiply
   25,198.74x = 34,774.25 × 13,869
4. Step 4: Simplify right side
   25,198.74x = 482,284,003.91
5. Step 5: Solve for x
   x = 482,284,003.91/25,198.74
6. Step 6: Final answer
   x = 19,139.21