Finding the Fourth Proportional to 22,150.35, 30,567 and 12,078.90

Step by Step Solution

1. Step 1: Write the proportion equation
   22,150.35 : 30,567 = 12,078.90 : x
2. Step 2: Convert to fraction form
   22,150.35/30,567 = 12,078.90/x
3. Step 3: Cross multiply
   22,150.35x = 30,567 × 12,078.90
4. Step 4: Simplify right side
   22,150.35x = 369,215,736.30
5. Step 5: Solve for x
   x = 369,215,736.30/22,150.35
6. Step 6: Final answer
   x = 16,668.62