Finding the Fourth Proportional to 10,995.66, 16,500.78 and 5,805.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,995.66 : 16,500.78 = 5,805.18 : x
2. Step 2: Convert to fraction form
   10,995.66/16,500.78 = 5,805.18/x
3. Step 3: Cross multiply
   10,995.66x = 16,500.78 × 5,805.18
4. Step 4: Simplify right side
   10,995.66x = 95,789,998.04
5. Step 5: Solve for x
   x = 95,789,998.04/10,995.66
6. Step 6: Final answer
   x = 8,711.62