Finding the Fourth Proportional to 10,399.19, 14,350.88 and 5,683.47

Step by Step Solution

1. Step 1: Write the proportion equation
   10,399.19 : 14,350.88 = 5,683.47 : x
2. Step 2: Convert to fraction form
   10,399.19/14,350.88 = 5,683.47/x
3. Step 3: Cross multiply
   10,399.19x = 14,350.88 × 5,683.47
4. Step 4: Simplify right side
   10,399.19x = 81,562,780.72
5. Step 5: Solve for x
   x = 81,562,780.72/10,399.19
6. Step 6: Final answer
   x = 7,843.19