Finding the Fourth Proportional to 18,236.48, 25,168.83 and 10,685.82

Step by Step Solution

1. Step 1: Write the proportion equation
   18,236.48 : 25,168.83 = 10,685.82 : x
2. Step 2: Convert to fraction form
   18,236.48/25,168.83 = 10,685.82/x
3. Step 3: Cross multiply
   18,236.48x = 25,168.83 × 10,685.82
4. Step 4: Simplify right side
   18,236.48x = 268,949,641.30
5. Step 5: Solve for x
   x = 268,949,641.30/18,236.48
6. Step 6: Final answer
   x = 14,747.90