Finding the Fourth Proportional to 10,818.86, 16,228.89 and 3,028.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,818.86 : 16,228.89 = 3,028.28 : x
2. Step 2: Convert to fraction form
   10,818.86/16,228.89 = 3,028.28/x
3. Step 3: Cross multiply
   10,818.86x = 16,228.89 × 3,028.28
4. Step 4: Simplify right side
   10,818.86x = 49,145,541.86
5. Step 5: Solve for x
   x = 49,145,541.86/10,818.86
6. Step 6: Final answer
   x = 4,542.58