Finding the Fourth Proportional to 10,992.70, 16,491.48 and 5,449.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,992.70 : 16,491.48 = 5,449.06 : x
2. Step 2: Convert to fraction form
   10,992.70/16,491.48 = 5,449.06/x
3. Step 3: Cross multiply
   10,992.70x = 16,491.48 × 5,449.06
4. Step 4: Simplify right side
   10,992.70x = 89,863,064.01
5. Step 5: Solve for x
   x = 89,863,064.01/10,992.70
6. Step 6: Final answer
   x = 8,174.79