Finding the Fourth Proportional to 22,395.30, 30,905.61 and 12,323.49

Step by Step Solution

1. Step 1: Write the proportion equation
   22,395.30 : 30,905.61 = 12,323.49 : x
2. Step 2: Convert to fraction form
   22,395.30/30,905.61 = 12,323.49/x
3. Step 3: Cross multiply
   22,395.30x = 30,905.61 × 12,323.49
4. Step 4: Simplify right side
   22,395.30x = 380,864,975.78
5. Step 5: Solve for x
   x = 380,864,975.78/22,395.30
6. Step 6: Final answer
   x = 17,006.47