Finding the Fourth Proportional to 10,521.69, 15,778.41 and 3,944.29

Step by Step Solution

1. Step 1: Write the proportion equation
   10,521.69 : 15,778.41 = 3,944.29 : x
2. Step 2: Convert to fraction form
   10,521.69/15,778.41 = 3,944.29/x
3. Step 3: Cross multiply
   10,521.69x = 15,778.41 × 3,944.29
4. Step 4: Simplify right side
   10,521.69x = 62,234,545.89
5. Step 5: Solve for x
   x = 62,234,545.89/10,521.69
6. Step 6: Final answer
   x = 5,914.88