Finding the Fourth Proportional to 10,991.82, 16,489.27 and 3,596.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,991.82 : 16,489.27 = 3,596.86 : x
2. Step 2: Convert to fraction form
   10,991.82/16,489.27 = 3,596.86/x
3. Step 3: Cross multiply
   10,991.82x = 16,489.27 × 3,596.86
4. Step 4: Simplify right side
   10,991.82x = 59,309,595.69
5. Step 5: Solve for x
   x = 59,309,595.69/10,991.82
6. Step 6: Final answer
   x = 5,395.79