Finding the Fourth Proportional to 18,258, 25,196.07 and 10,081.61

Step by Step Solution

1. Step 1: Write the proportion equation
   18,258 : 25,196.07 = 10,081.61 : x
2. Step 2: Convert to fraction form
   18,258/25,196.07 = 10,081.61/x
3. Step 3: Cross multiply
   18,258x = 25,196.07 × 10,081.61
4. Step 4: Simplify right side
   18,258x = 254,016,825.29
5. Step 5: Solve for x
   x = 254,016,825.29/18,258
6. Step 6: Final answer
   x = 13,912.63