Finding the Fourth Proportional to 22,293.74, 30,764.54 and 12,221.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,293.74 : 30,764.54 = 12,221.96 : x
2. Step 2: Convert to fraction form
   22,293.74/30,764.54 = 12,221.96/x
3. Step 3: Cross multiply
   22,293.74x = 30,764.54 × 12,221.96
4. Step 4: Simplify right side
   22,293.74x = 376,002,977.30
5. Step 5: Solve for x
   x = 376,002,977.30/22,293.74
6. Step 6: Final answer
   x = 16,865.85