Finding the Fourth Proportional to 22,441.69, 30,968.22 and 12,879.37

Step by Step Solution

1. Step 1: Write the proportion equation
   22,441.69 : 30,968.22 = 12,879.37 : x
2. Step 2: Convert to fraction form
   22,441.69/30,968.22 = 12,879.37/x
3. Step 3: Cross multiply
   22,441.69x = 30,968.22 × 12,879.37
4. Step 4: Simplify right side
   22,441.69x = 398,851,163.62
5. Step 5: Solve for x
   x = 398,851,163.62/22,441.69
6. Step 6: Final answer
   x = 17,772.78