Finding the Fourth Proportional to 22,162.21, 30,581.49 and 12,471.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,162.21 : 30,581.49 = 12,471.50 : x
2. Step 2: Convert to fraction form
   22,162.21/30,581.49 = 12,471.50/x
3. Step 3: Cross multiply
   22,162.21x = 30,581.49 × 12,471.50
4. Step 4: Simplify right side
   22,162.21x = 381,397,052.54
5. Step 5: Solve for x
   x = 381,397,052.54/22,162.21
6. Step 6: Final answer
   x = 17,209.34