Finding the Fourth Proportional to 18,196.18, 25,111.22 and 10,238.69

Step by Step Solution

1. Step 1: Write the proportion equation
   18,196.18 : 25,111.22 = 10,238.69 : x
2. Step 2: Convert to fraction form
   18,196.18/25,111.22 = 10,238.69/x
3. Step 3: Cross multiply
   18,196.18x = 25,111.22 × 10,238.69
4. Step 4: Simplify right side
   18,196.18x = 257,106,022.70
5. Step 5: Solve for x
   x = 257,106,022.70/18,196.18
6. Step 6: Final answer
   x = 14,129.67