Finding the Fourth Proportional to 22,293.42, 30,764.85 and 12,222.28

Step by Step Solution

1. Step 1: Write the proportion equation
   22,293.42 : 30,764.85 = 12,222.28 : x
2. Step 2: Convert to fraction form
   22,293.42/30,764.85 = 12,222.28/x
3. Step 3: Cross multiply
   22,293.42x = 30,764.85 × 12,222.28
4. Step 4: Simplify right side
   22,293.42x = 376,016,610.86
5. Step 5: Solve for x
   x = 376,016,610.86/22,293.42
6. Step 6: Final answer
   x = 16,866.71