Finding the Fourth Proportional to 22,288.91, 30,759.48 and 12,217.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,288.91 : 30,759.48 = 12,217.34 : x
2. Step 2: Convert to fraction form
   22,288.91/30,759.48 = 12,217.34/x
3. Step 3: Cross multiply
   22,288.91x = 30,759.48 × 12,217.34
4. Step 4: Simplify right side
   22,288.91x = 375,799,056.47
5. Step 5: Solve for x
   x = 375,799,056.47/22,288.91
6. Step 6: Final answer
   x = 16,860.36