Finding the Fourth Proportional to 10,942.20, 16,379.37 and 8,844.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,942.20 : 16,379.37 = 8,844.69 : x
2. Step 2: Convert to fraction form
   10,942.20/16,379.37 = 8,844.69/x
3. Step 3: Cross multiply
   10,942.20x = 16,379.37 × 8,844.69
4. Step 4: Simplify right side
   10,942.20x = 144,870,450.05
5. Step 5: Solve for x
   x = 144,870,450.05/10,942.20
6. Step 6: Final answer
   x = 13,239.61