Finding the Fourth Proportional to 5,321.54, 7,342.49 and 3,196.35

Step by Step Solution

1. Step 1: Write the proportion equation
   5,321.54 : 7,342.49 = 3,196.35 : x
2. Step 2: Convert to fraction form
   5,321.54/7,342.49 = 3,196.35/x
3. Step 3: Cross multiply
   5,321.54x = 7,342.49 × 3,196.35
4. Step 4: Simplify right side
   5,321.54x = 23,469,151.93
5. Step 5: Solve for x
   x = 23,469,151.93/5,321.54
6. Step 6: Final answer
   x = 4,410.22