Finding the Fourth Proportional to 18,564.69, 25,589.42 and 14,524.72

Step by Step Solution

1. Step 1: Write the proportion equation
   18,564.69 : 25,589.42 = 14,524.72 : x
2. Step 2: Convert to fraction form
   18,564.69/25,589.42 = 14,524.72/x
3. Step 3: Cross multiply
   18,564.69x = 25,589.42 × 14,524.72
4. Step 4: Simplify right side
   18,564.69x = 371,679,078.33
5. Step 5: Solve for x
   x = 371,679,078.33/18,564.69
6. Step 6: Final answer
   x = 20,020.75