Finding the Fourth Proportional to 5,945.48, 8,205.72 and 3,855.68

Step by Step Solution

1. Step 1: Write the proportion equation
   5,945.48 : 8,205.72 = 3,855.68 : x
2. Step 2: Convert to fraction form
   5,945.48/8,205.72 = 3,855.68/x
3. Step 3: Cross multiply
   5,945.48x = 8,205.72 × 3,855.68
4. Step 4: Simplify right side
   5,945.48x = 31,638,630.49
5. Step 5: Solve for x
   x = 31,638,630.49/5,945.48
6. Step 6: Final answer
   x = 5,321.46