Finding the Fourth Proportional to 22,426.96, 30,949.92 and 12,355.60

Step by Step Solution

1. Step 1: Write the proportion equation
   22,426.96 : 30,949.92 = 12,355.60 : x
2. Step 2: Convert to fraction form
   22,426.96/30,949.92 = 12,355.60/x
3. Step 3: Cross multiply
   22,426.96x = 30,949.92 × 12,355.60
4. Step 4: Simplify right side
   22,426.96x = 382,404,831.55
5. Step 5: Solve for x
   x = 382,404,831.55/22,426.96
6. Step 6: Final answer
   x = 17,051.12