Finding the Fourth Proportional to 22,434.20, 30,945.50 and 13,353.46

Step by Step Solution

1. Step 1: Write the proportion equation
   22,434.20 : 30,945.50 = 13,353.46 : x
2. Step 2: Convert to fraction form
   22,434.20/30,945.50 = 13,353.46/x
3. Step 3: Cross multiply
   22,434.20x = 30,945.50 × 13,353.46
4. Step 4: Simplify right side
   22,434.20x = 413,229,496.43
5. Step 5: Solve for x
   x = 413,229,496.43/22,434.20
6. Step 6: Final answer
   x = 18,419.62