Finding the Fourth Proportional to 11,169.34, 16,728.49 and 5,330.05

Step by Step Solution

1. Step 1: Write the proportion equation
   11,169.34 : 16,728.49 = 5,330.05 : x
2. Step 2: Convert to fraction form
   11,169.34/16,728.49 = 5,330.05/x
3. Step 3: Cross multiply
   11,169.34x = 16,728.49 × 5,330.05
4. Step 4: Simplify right side
   11,169.34x = 89,163,632.98
5. Step 5: Solve for x
   x = 89,163,632.98/11,169.34
6. Step 6: Final answer
   x = 7,982.89