Finding the Fourth Proportional to 3,212.04, 4,403.67 and 3,153.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,212.04 : 4,403.67 = 3,153.72 : x
2. Step 2: Convert to fraction form
   3,212.04/4,403.67 = 3,153.72/x
3. Step 3: Cross multiply
   3,212.04x = 4,403.67 × 3,153.72
4. Step 4: Simplify right side
   3,212.04x = 13,887,942.15
5. Step 5: Solve for x
   x = 13,887,942.15/3,212.04
6. Step 6: Final answer
   x = 4,323.71