Finding the Fourth Proportional to 18,105.69, 24,986.58 and 10,147.86

Step by Step Solution

1. Step 1: Write the proportion equation
   18,105.69 : 24,986.58 = 10,147.86 : x
2. Step 2: Convert to fraction form
   18,105.69/24,986.58 = 10,147.86/x
3. Step 3: Cross multiply
   18,105.69x = 24,986.58 × 10,147.86
4. Step 4: Simplify right side
   18,105.69x = 253,560,315.72
5. Step 5: Solve for x
   x = 253,560,315.72/18,105.69
6. Step 6: Final answer
   x = 14,004.45