Finding the Fourth Proportional to 11,079.28, 16,621.81 and 3,288.09

Step by Step Solution

1. Step 1: Write the proportion equation
   11,079.28 : 16,621.81 = 3,288.09 : x
2. Step 2: Convert to fraction form
   11,079.28/16,621.81 = 3,288.09/x
3. Step 3: Cross multiply
   11,079.28x = 16,621.81 × 3,288.09
4. Step 4: Simplify right side
   11,079.28x = 54,654,061.35
5. Step 5: Solve for x
   x = 54,654,061.35/11,079.28
6. Step 6: Final answer
   x = 4,933.00