Finding the Fourth Proportional to 18,499.72, 25,531.28 and 10,544.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,499.72 : 25,531.28 = 10,544.50 : x
2. Step 2: Convert to fraction form
   18,499.72/25,531.28 = 10,544.50/x
3. Step 3: Cross multiply
   18,499.72x = 25,531.28 × 10,544.50
4. Step 4: Simplify right side
   18,499.72x = 269,214,581.96
5. Step 5: Solve for x
   x = 269,214,581.96/18,499.72
6. Step 6: Final answer
   x = 14,552.36