Finding the Fourth Proportional to 10,819.28, 16,230.78 and 3,423.62

Step by Step Solution

1. Step 1: Write the proportion equation
   10,819.28 : 16,230.78 = 3,423.62 : x
2. Step 2: Convert to fraction form
   10,819.28/16,230.78 = 3,423.62/x
3. Step 3: Cross multiply
   10,819.28x = 16,230.78 × 3,423.62
4. Step 4: Simplify right side
   10,819.28x = 55,568,023.02
5. Step 5: Solve for x
   x = 55,568,023.02/10,819.28
6. Step 6: Final answer
   x = 5,136.02