Finding the Fourth Proportional to 18,042.72, 24,900.24 and 12,444

Step by Step Solution

1. Step 1: Write the proportion equation
   18,042.72 : 24,900.24 = 12,444 : x
2. Step 2: Convert to fraction form
   18,042.72/24,900.24 = 12,444/x
3. Step 3: Cross multiply
   18,042.72x = 24,900.24 × 12,444
4. Step 4: Simplify right side
   18,042.72x = 309,858,586.56
5. Step 5: Solve for x
   x = 309,858,586.56/18,042.72
6. Step 6: Final answer
   x = 17,173.61