Finding the Fourth Proportional to 18,465.18, 25,481.79 and 10,081.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,465.18 : 25,481.79 = 10,081.50 : x
2. Step 2: Convert to fraction form
   18,465.18/25,481.79 = 10,081.50/x
3. Step 3: Cross multiply
   18,465.18x = 25,481.79 × 10,081.50
4. Step 4: Simplify right side
   18,465.18x = 256,894,665.89
5. Step 5: Solve for x
   x = 256,894,665.89/18,465.18
6. Step 6: Final answer
   x = 13,912.38