Finding the Fourth Proportional to 18,806.27, 25,958.37 and 10,853.69

Step by Step Solution

1. Step 1: Write the proportion equation
   18,806.27 : 25,958.37 = 10,853.69 : x
2. Step 2: Convert to fraction form
   18,806.27/25,958.37 = 10,853.69/x
3. Step 3: Cross multiply
   18,806.27x = 25,958.37 × 10,853.69
4. Step 4: Simplify right side
   18,806.27x = 281,744,100.89
5. Step 5: Solve for x
   x = 281,744,100.89/18,806.27
6. Step 6: Final answer
   x = 14,981.39