Finding the Fourth Proportional to 11,078.88, 16,621.03 and 3,287.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,078.88 : 16,621.03 = 3,287.69 : x
2. Step 2: Convert to fraction form
   11,078.88/16,621.03 = 3,287.69/x
3. Step 3: Cross multiply
   11,078.88x = 16,621.03 × 3,287.69
4. Step 4: Simplify right side
   11,078.88x = 54,644,777.45
5. Step 5: Solve for x
   x = 54,644,777.45/11,078.88
6. Step 6: Final answer
   x = 4,932.34