Finding the Fourth Proportional to 22,288.16, 30,758.40 and 12,217.46

Step by Step Solution

1. Step 1: Write the proportion equation
   22,288.16 : 30,758.40 = 12,217.46 : x
2. Step 2: Convert to fraction form
   22,288.16/30,758.40 = 12,217.46/x
3. Step 3: Cross multiply
   22,288.16x = 30,758.40 × 12,217.46
4. Step 4: Simplify right side
   22,288.16x = 375,789,367.87
5. Step 5: Solve for x
   x = 375,789,367.87/22,288.16
6. Step 6: Final answer
   x = 16,860.49