Finding the Fourth Proportional to 10,399.39, 14,351.43 and 5,683.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,399.39 : 14,351.43 = 5,683.96 : x
2. Step 2: Convert to fraction form
   10,399.39/14,351.43 = 5,683.96/x
3. Step 3: Cross multiply
   10,399.39x = 14,351.43 × 5,683.96
4. Step 4: Simplify right side
   10,399.39x = 81,572,954.06
5. Step 5: Solve for x
   x = 81,572,954.06/10,399.39
6. Step 6: Final answer
   x = 7,844.01