Finding the Fourth Proportional to 10,567.67, 15,854.23 and 3,993.91

Step by Step Solution

1. Step 1: Write the proportion equation
   10,567.67 : 15,854.23 = 3,993.91 : x
2. Step 2: Convert to fraction form
   10,567.67/15,854.23 = 3,993.91/x
3. Step 3: Cross multiply
   10,567.67x = 15,854.23 × 3,993.91
4. Step 4: Simplify right side
   10,567.67x = 63,320,333.10
5. Step 5: Solve for x
   x = 63,320,333.10/10,567.67
6. Step 6: Final answer
   x = 5,991.89