Finding the Fourth Proportional to 8,323.97, 12,490.56 and 3,393.22

Step by Step Solution

1. Step 1: Write the proportion equation
   8,323.97 : 12,490.56 = 3,393.22 : x
2. Step 2: Convert to fraction form
   8,323.97/12,490.56 = 3,393.22/x
3. Step 3: Cross multiply
   8,323.97x = 12,490.56 × 3,393.22
4. Step 4: Simplify right side
   8,323.97x = 42,383,216.97
5. Step 5: Solve for x
   x = 42,383,216.97/8,323.97
6. Step 6: Final answer
   x = 5,091.71