Finding the Fourth Proportional to 5,867.30, 8,105.60 and 3,855.47

Step by Step Solution

1. Step 1: Write the proportion equation
   5,867.30 : 8,105.60 = 3,855.47 : x
2. Step 2: Convert to fraction form
   5,867.30/8,105.60 = 3,855.47/x
3. Step 3: Cross multiply
   5,867.30x = 8,105.60 × 3,855.47
4. Step 4: Simplify right side
   5,867.30x = 31,250,866.74
5. Step 5: Solve for x
   x = 31,250,866.74/5,867.30
6. Step 6: Final answer
   x = 5,326.28