Finding the Fourth Proportional to 18,608.42, 25,678.13 and 10,648.82

Step by Step Solution

1. Step 1: Write the proportion equation
   18,608.42 : 25,678.13 = 10,648.82 : x
2. Step 2: Convert to fraction form
   18,608.42/25,678.13 = 10,648.82/x
3. Step 3: Cross multiply
   18,608.42x = 25,678.13 × 10,648.82
4. Step 4: Simplify right side
   18,608.42x = 273,441,784.31
5. Step 5: Solve for x
   x = 273,441,784.31/18,608.42
6. Step 6: Final answer
   x = 14,694.52