Finding the Fourth Proportional to 10,389.10, 14,336.96 and 5,673.38

Step by Step Solution

1. Step 1: Write the proportion equation
   10,389.10 : 14,336.96 = 5,673.38 : x
2. Step 2: Convert to fraction form
   10,389.10/14,336.96 = 5,673.38/x
3. Step 3: Cross multiply
   10,389.10x = 14,336.96 × 5,673.38
4. Step 4: Simplify right side
   10,389.10x = 81,339,022.12
5. Step 5: Solve for x
   x = 81,339,022.12/10,389.10
6. Step 6: Final answer
   x = 7,829.27