Finding the Fourth Proportional to 10,818.37, 16,229.55 and 3,424.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,818.37 : 16,229.55 = 3,424.69 : x
2. Step 2: Convert to fraction form
   10,818.37/16,229.55 = 3,424.69/x
3. Step 3: Cross multiply
   10,818.37x = 16,229.55 × 3,424.69
4. Step 4: Simplify right side
   10,818.37x = 55,581,177.59
5. Step 5: Solve for x
   x = 55,581,177.59/10,818.37
6. Step 6: Final answer
   x = 5,137.67