Finding the Fourth Proportional to 18,496.16, 25,524.60 and 10,112.72

Step by Step Solution

1. Step 1: Write the proportion equation
   18,496.16 : 25,524.60 = 10,112.72 : x
2. Step 2: Convert to fraction form
   18,496.16/25,524.60 = 10,112.72/x
3. Step 3: Cross multiply
   18,496.16x = 25,524.60 × 10,112.72
4. Step 4: Simplify right side
   18,496.16x = 258,123,132.91
5. Step 5: Solve for x
   x = 258,123,132.91/18,496.16
6. Step 6: Final answer
   x = 13,955.50