Finding the Fourth Proportional to 25,167.15, 34,728.89 and 13,836.47

Step by Step Solution

1. Step 1: Write the proportion equation
   25,167.15 : 34,728.89 = 13,836.47 : x
2. Step 2: Convert to fraction form
   25,167.15/34,728.89 = 13,836.47/x
3. Step 3: Cross multiply
   25,167.15x = 34,728.89 × 13,836.47
4. Step 4: Simplify right side
   25,167.15x = 480,525,001.79
5. Step 5: Solve for x
   x = 480,525,001.79/25,167.15
6. Step 6: Final answer
   x = 19,093.34