Finding the Fourth Proportional to 22,219.05, 30,662.22 and 12,147.57

Step by Step Solution

1. Step 1: Write the proportion equation
   22,219.05 : 30,662.22 = 12,147.57 : x
2. Step 2: Convert to fraction form
   22,219.05/30,662.22 = 12,147.57/x
3. Step 3: Cross multiply
   22,219.05x = 30,662.22 × 12,147.57
4. Step 4: Simplify right side
   22,219.05x = 372,471,463.81
5. Step 5: Solve for x
   x = 372,471,463.81/22,219.05
6. Step 6: Final answer
   x = 16,763.61