Finding the Fourth Proportional to 8,003.97, 12,004.56 and 3,620.40

Step by Step Solution

1. Step 1: Write the proportion equation
   8,003.97 : 12,004.56 = 3,620.40 : x
2. Step 2: Convert to fraction form
   8,003.97/12,004.56 = 3,620.40/x
3. Step 3: Cross multiply
   8,003.97x = 12,004.56 × 3,620.40
4. Step 4: Simplify right side
   8,003.97x = 43,461,309.02
5. Step 5: Solve for x
   x = 43,461,309.02/8,003.97
6. Step 6: Final answer
   x = 5,429.97