Finding the Fourth Proportional to 3,626.50, 5,443.60 and 3,212.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,626.50 : 5,443.60 = 3,212.72 : x
2. Step 2: Convert to fraction form
   3,626.50/5,443.60 = 3,212.72/x
3. Step 3: Cross multiply
   3,626.50x = 5,443.60 × 3,212.72
4. Step 4: Simplify right side
   3,626.50x = 17,488,762.59
5. Step 5: Solve for x
   x = 17,488,762.59/3,626.50
6. Step 6: Final answer
   x = 4,822.49