Finding the Fourth Proportional to 10,818.48, 16,226.31 and 3,423.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,818.48 : 16,226.31 = 3,423.69 : x
2. Step 2: Convert to fraction form
   10,818.48/16,226.31 = 3,423.69/x
3. Step 3: Cross multiply
   10,818.48x = 16,226.31 × 3,423.69
4. Step 4: Simplify right side
   10,818.48x = 55,553,855.28
5. Step 5: Solve for x
   x = 55,553,855.28/10,818.48
6. Step 6: Final answer
   x = 5,135.09