Finding the Fourth Proportional to 10,399.54, 14,351.40 and 5,683.84

Step by Step Solution

1. Step 1: Write the proportion equation
   10,399.54 : 14,351.40 = 5,683.84 : x
2. Step 2: Convert to fraction form
   10,399.54/14,351.40 = 5,683.84/x
3. Step 3: Cross multiply
   10,399.54x = 14,351.40 × 5,683.84
4. Step 4: Simplify right side
   10,399.54x = 81,571,061.38
5. Step 5: Solve for x
   x = 81,571,061.38/10,399.54
6. Step 6: Final answer
   x = 7,843.72