Finding the Fourth Proportional to 10,991.16, 16,494.03 and 5,800.68

Step by Step Solution

1. Step 1: Write the proportion equation
   10,991.16 : 16,494.03 = 5,800.68 : x
2. Step 2: Convert to fraction form
   10,991.16/16,494.03 = 5,800.68/x
3. Step 3: Cross multiply
   10,991.16x = 16,494.03 × 5,800.68
4. Step 4: Simplify right side
   10,991.16x = 95,676,589.94
5. Step 5: Solve for x
   x = 95,676,589.94/10,991.16
6. Step 6: Final answer
   x = 8,704.87