Finding the Fourth Proportional to 18,196.16, 25,110.59 and 10,238.45

Step by Step Solution

1. Step 1: Write the proportion equation
   18,196.16 : 25,110.59 = 10,238.45 : x
2. Step 2: Convert to fraction form
   18,196.16/25,110.59 = 10,238.45/x
3. Step 3: Cross multiply
   18,196.16x = 25,110.59 × 10,238.45
4. Step 4: Simplify right side
   18,196.16x = 257,093,343.44
5. Step 5: Solve for x
   x = 257,093,343.44/18,196.16
6. Step 6: Final answer
   x = 14,128.99