Finding the Fourth Proportional to 5,843.69, 8,064.50 and 3,191.21

Step by Step Solution

1. Step 1: Write the proportion equation
   5,843.69 : 8,064.50 = 3,191.21 : x
2. Step 2: Convert to fraction form
   5,843.69/8,064.50 = 3,191.21/x
3. Step 3: Cross multiply
   5,843.69x = 8,064.50 × 3,191.21
4. Step 4: Simplify right side
   5,843.69x = 25,735,456.77
5. Step 5: Solve for x
   x = 25,735,456.77/5,843.69
6. Step 6: Final answer
   x = 4,403.98