Finding the Fourth Proportional to 22,189.72, 30,622.34 and 12,118.24

Step by Step Solution

1. Step 1: Write the proportion equation
   22,189.72 : 30,622.34 = 12,118.24 : x
2. Step 2: Convert to fraction form
   22,189.72/30,622.34 = 12,118.24/x
3. Step 3: Cross multiply
   22,189.72x = 30,622.34 × 12,118.24
4. Step 4: Simplify right side
   22,189.72x = 371,088,865.48
5. Step 5: Solve for x
   x = 371,088,865.48/22,189.72
6. Step 6: Final answer
   x = 16,723.46