Finding the Fourth Proportional to 10,993.86, 16,491.53 and 4,419.23

Step by Step Solution

1. Step 1: Write the proportion equation
   10,993.86 : 16,491.53 = 4,419.23 : x
2. Step 2: Convert to fraction form
   10,993.86/16,491.53 = 4,419.23/x
3. Step 3: Cross multiply
   10,993.86x = 16,491.53 × 4,419.23
4. Step 4: Simplify right side
   10,993.86x = 72,879,792.71
5. Step 5: Solve for x
   x = 72,879,792.71/10,993.86
6. Step 6: Final answer
   x = 6,629.14