Finding the Fourth Proportional to 22,180, 30,610.32 and 12,245.92

Step by Step Solution

1. Step 1: Write the proportion equation
   22,180 : 30,610.32 = 12,245.92 : x
2. Step 2: Convert to fraction form
   22,180/30,610.32 = 12,245.92/x
3. Step 3: Cross multiply
   22,180x = 30,610.32 × 12,245.92
4. Step 4: Simplify right side
   22,180x = 374,851,529.89
5. Step 5: Solve for x
   x = 374,851,529.89/22,180
6. Step 6: Final answer
   x = 16,900.43