Finding the Fourth Proportional to 5,791.55, 8,665.18 and 3,196.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,791.55 : 8,665.18 = 3,196.31 : x
2. Step 2: Convert to fraction form
   5,791.55/8,665.18 = 3,196.31/x
3. Step 3: Cross multiply
   5,791.55x = 8,665.18 × 3,196.31
4. Step 4: Simplify right side
   5,791.55x = 27,696,601.49
5. Step 5: Solve for x
   x = 27,696,601.49/5,791.55
6. Step 6: Final answer
   x = 4,782.24