Finding the Fourth Proportional to 4,385.38, 6,567.57 and 3,196.23

Step by Step Solution

1. Step 1: Write the proportion equation
   4,385.38 : 6,567.57 = 3,196.23 : x
2. Step 2: Convert to fraction form
   4,385.38/6,567.57 = 3,196.23/x
3. Step 3: Cross multiply
   4,385.38x = 6,567.57 × 3,196.23
4. Step 4: Simplify right side
   4,385.38x = 20,991,476.58
5. Step 5: Solve for x
   x = 20,991,476.58/4,385.38
6. Step 6: Final answer
   x = 4,786.70