Finding the Fourth Proportional to 10,496.27, 15,739.47 and 3,920.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,496.27 : 15,739.47 = 3,920.69 : x
2. Step 2: Convert to fraction form
   10,496.27/15,739.47 = 3,920.69/x
3. Step 3: Cross multiply
   10,496.27x = 15,739.47 × 3,920.69
4. Step 4: Simplify right side
   10,496.27x = 61,709,503.94
5. Step 5: Solve for x
   x = 61,709,503.94/10,496.27
6. Step 6: Final answer
   x = 5,879.19