Finding the Fourth Proportional to 22,479.69, 33,723.20 and 8,440.81

Step by Step Solution

1. Step 1: Write the proportion equation
   22,479.69 : 33,723.20 = 8,440.81 : x
2. Step 2: Convert to fraction form
   22,479.69/33,723.20 = 8,440.81/x
3. Step 3: Cross multiply
   22,479.69x = 33,723.20 × 8,440.81
4. Step 4: Simplify right side
   22,479.69x = 284,651,060.59
5. Step 5: Solve for x
   x = 284,651,060.59/22,479.69
6. Step 6: Final answer
   x = 12,662.59