Finding the Fourth Proportional to 22,422.96, 30,945.60 and 12,353.28

Step by Step Solution

1. Step 1: Write the proportion equation
   22,422.96 : 30,945.60 = 12,353.28 : x
2. Step 2: Convert to fraction form
   22,422.96/30,945.60 = 12,353.28/x
3. Step 3: Cross multiply
   22,422.96x = 30,945.60 × 12,353.28
4. Step 4: Simplify right side
   22,422.96x = 382,279,661.57
5. Step 5: Solve for x
   x = 382,279,661.57/22,422.96
6. Step 6: Final answer
   x = 17,048.58