Finding the Fourth Proportional to 22,395.86, 30,905.63 and 12,324.30

Step by Step Solution

1. Step 1: Write the proportion equation
   22,395.86 : 30,905.63 = 12,324.30 : x
2. Step 2: Convert to fraction form
   22,395.86/30,905.63 = 12,324.30/x
3. Step 3: Cross multiply
   22,395.86x = 30,905.63 × 12,324.30
4. Step 4: Simplify right side
   22,395.86x = 380,890,193.83
5. Step 5: Solve for x
   x = 380,890,193.83/22,395.86
6. Step 6: Final answer
   x = 17,007.17