Finding the Fourth Proportional to 18,196.30, 25,108.86 and 10,238.36

Step by Step Solution

1. Step 1: Write the proportion equation
   18,196.30 : 25,108.86 = 10,238.36 : x
2. Step 2: Convert to fraction form
   18,196.30/25,108.86 = 10,238.36/x
3. Step 3: Cross multiply
   18,196.30x = 25,108.86 × 10,238.36
4. Step 4: Simplify right side
   18,196.30x = 257,073,547.87
5. Step 5: Solve for x
   x = 257,073,547.87/18,196.30
6. Step 6: Final answer
   x = 14,127.79