Finding the Fourth Proportional to 8,390.94, 12,562.72 and 4,433.23

Step by Step Solution

1. Step 1: Write the proportion equation
   8,390.94 : 12,562.72 = 4,433.23 : x
2. Step 2: Convert to fraction form
   8,390.94/12,562.72 = 4,433.23/x
3. Step 3: Cross multiply
   8,390.94x = 12,562.72 × 4,433.23
4. Step 4: Simplify right side
   8,390.94x = 55,693,444.27
5. Step 5: Solve for x
   x = 55,693,444.27/8,390.94
6. Step 6: Final answer
   x = 6,637.33