Finding the Fourth Proportional to 22,238.68, 30,684.72 and 12,805.44

Step by Step Solution

1. Step 1: Write the proportion equation
   22,238.68 : 30,684.72 = 12,805.44 : x
2. Step 2: Convert to fraction form
   22,238.68/30,684.72 = 12,805.44/x
3. Step 3: Cross multiply
   22,238.68x = 30,684.72 × 12,805.44
4. Step 4: Simplify right side
   22,238.68x = 392,931,340.88
5. Step 5: Solve for x
   x = 392,931,340.88/22,238.68
6. Step 6: Final answer
   x = 17,668.82