Finding the Fourth Proportional to 22,219.02, 30,662.26 and 12,147.30

Step by Step Solution

1. Step 1: Write the proportion equation
   22,219.02 : 30,662.26 = 12,147.30 : x
2. Step 2: Convert to fraction form
   22,219.02/30,662.26 = 12,147.30/x
3. Step 3: Cross multiply
   22,219.02x = 30,662.26 × 12,147.30
4. Step 4: Simplify right side
   22,219.02x = 372,463,670.90
5. Step 5: Solve for x
   x = 372,463,670.90/22,219.02
6. Step 6: Final answer
   x = 16,763.28