Finding the Fourth Proportional to 18,423.43, 25,404.18 and 12,444.71

Step by Step Solution

1. Step 1: Write the proportion equation
   18,423.43 : 25,404.18 = 12,444.71 : x
2. Step 2: Convert to fraction form
   18,423.43/25,404.18 = 12,444.71/x
3. Step 3: Cross multiply
   18,423.43x = 25,404.18 × 12,444.71
4. Step 4: Simplify right side
   18,423.43x = 316,147,652.89
5. Step 5: Solve for x
   x = 316,147,652.89/18,423.43
6. Step 6: Final answer
   x = 17,160.09