Finding the Fourth Proportional to 22,288.52, 30,756.94 and 12,216.36

Step by Step Solution

1. Step 1: Write the proportion equation
   22,288.52 : 30,756.94 = 12,216.36 : x
2. Step 2: Convert to fraction form
   22,288.52/30,756.94 = 12,216.36/x
3. Step 3: Cross multiply
   22,288.52x = 30,756.94 × 12,216.36
4. Step 4: Simplify right side
   22,288.52x = 375,737,851.54
5. Step 5: Solve for x
   x = 375,737,851.54/22,288.52
6. Step 6: Final answer
   x = 16,857.91