Finding the Fourth Proportional to 18,735.69, 25,855.31 and 10,238

Step by Step Solution

1. Step 1: Write the proportion equation
   18,735.69 : 25,855.31 = 10,238 : x
2. Step 2: Convert to fraction form
   18,735.69/25,855.31 = 10,238/x
3. Step 3: Cross multiply
   18,735.69x = 25,855.31 × 10,238
4. Step 4: Simplify right side
   18,735.69x = 264,706,663.78
5. Step 5: Solve for x
   x = 264,706,663.78/18,735.69
6. Step 6: Final answer
   x = 14,128.47