Finding the Fourth Proportional to 18,499.12, 25,531.02 and 10,543

Step by Step Solution

1. Step 1: Write the proportion equation
   18,499.12 : 25,531.02 = 10,543 : x
2. Step 2: Convert to fraction form
   18,499.12/25,531.02 = 10,543/x
3. Step 3: Cross multiply
   18,499.12x = 25,531.02 × 10,543
4. Step 4: Simplify right side
   18,499.12x = 269,173,543.86
5. Step 5: Solve for x
   x = 269,173,543.86/18,499.12
6. Step 6: Final answer
   x = 14,550.61