Finding the Fourth Proportional to 4,196.90, 6,300.81 and 3,223.68

Step by Step Solution

1. Step 1: Write the proportion equation
   4,196.90 : 6,300.81 = 3,223.68 : x
2. Step 2: Convert to fraction form
   4,196.90/6,300.81 = 3,223.68/x
3. Step 3: Cross multiply
   4,196.90x = 6,300.81 × 3,223.68
4. Step 4: Simplify right side
   4,196.90x = 20,311,795.18
5. Step 5: Solve for x
   x = 20,311,795.18/4,196.90
6. Step 6: Final answer
   x = 4,839.72