Finding the Fourth Proportional to 10,398.86, 14,351.42 and 5,683.85

Step by Step Solution

1. Step 1: Write the proportion equation
   10,398.86 : 14,351.42 = 5,683.85 : x
2. Step 2: Convert to fraction form
   10,398.86/14,351.42 = 5,683.85/x
3. Step 3: Cross multiply
   10,398.86x = 14,351.42 × 5,683.85
4. Step 4: Simplify right side
   10,398.86x = 81,571,290.15
5. Step 5: Solve for x
   x = 81,571,290.15/10,398.86
6. Step 6: Final answer
   x = 7,844.25