Finding the Fourth Proportional to 25,144.86, 34,699.91 and 13,815.08

Step by Step Solution

1. Step 1: Write the proportion equation
   25,144.86 : 34,699.91 = 13,815.08 : x
2. Step 2: Convert to fraction form
   25,144.86/34,699.91 = 13,815.08/x
3. Step 3: Cross multiply
   25,144.86x = 34,699.91 × 13,815.08
4. Step 4: Simplify right side
   25,144.86x = 479,382,153.93
5. Step 5: Solve for x
   x = 479,382,153.93/25,144.86
6. Step 6: Final answer
   x = 19,064.82