Finding the Fourth Proportional to 22,405.57, 30,919.33 and 12,334.04

Step by Step Solution

1. Step 1: Write the proportion equation
   22,405.57 : 30,919.33 = 12,334.04 : x
2. Step 2: Convert to fraction form
   22,405.57/30,919.33 = 12,334.04/x
3. Step 3: Cross multiply
   22,405.57x = 30,919.33 × 12,334.04
4. Step 4: Simplify right side
   22,405.57x = 381,360,299.46
5. Step 5: Solve for x
   x = 381,360,299.46/22,405.57
6. Step 6: Final answer
   x = 17,020.78