Finding the Fourth Proportional to 22,003.92, 30,363.84 and 12,443.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,003.92 : 30,363.84 = 12,443.76 : x
2. Step 2: Convert to fraction form
   22,003.92/30,363.84 = 12,443.76/x
3. Step 3: Cross multiply
   22,003.92x = 30,363.84 × 12,443.76
4. Step 4: Simplify right side
   22,003.92x = 377,840,337.64
5. Step 5: Solve for x
   x = 377,840,337.64/22,003.92
6. Step 6: Final answer
   x = 17,171.50