Finding the Fourth Proportional to 22,219.14, 30,662.43 and 12,147.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,219.14 : 30,662.43 = 12,147.42 : x
2. Step 2: Convert to fraction form
   22,219.14/30,662.43 = 12,147.42/x
3. Step 3: Cross multiply
   22,219.14x = 30,662.43 × 12,147.42
4. Step 4: Simplify right side
   22,219.14x = 372,469,415.43
5. Step 5: Solve for x
   x = 372,469,415.43/22,219.14
6. Step 6: Final answer
   x = 16,763.45