Finding the Fourth Proportional to 25,169.79, 34,732.51 and 13,839

Step by Step Solution

1. Step 1: Write the proportion equation
   25,169.79 : 34,732.51 = 13,839 : x
2. Step 2: Convert to fraction form
   25,169.79/34,732.51 = 13,839/x
3. Step 3: Cross multiply
   25,169.79x = 34,732.51 × 13,839
4. Step 4: Simplify right side
   25,169.79x = 480,663,205.89
5. Step 5: Solve for x
   x = 480,663,205.89/25,169.79
6. Step 6: Final answer
   x = 19,096.83