Finding the Fourth Proportional to 10,778.69, 16,161.59 and 4,197.17

Step by Step Solution

1. Step 1: Write the proportion equation
   10,778.69 : 16,161.59 = 4,197.17 : x
2. Step 2: Convert to fraction form
   10,778.69/16,161.59 = 4,197.17/x
3. Step 3: Cross multiply
   10,778.69x = 16,161.59 × 4,197.17
4. Step 4: Simplify right side
   10,778.69x = 67,832,991.60
5. Step 5: Solve for x
   x = 67,832,991.60/10,778.69
6. Step 6: Final answer
   x = 6,293.25