Finding the Fourth Proportional to 8,009.12, 12,003.92 and 3,622.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,009.12 : 12,003.92 = 3,622.16 : x
2. Step 2: Convert to fraction form
   8,009.12/12,003.92 = 3,622.16/x
3. Step 3: Cross multiply
   8,009.12x = 12,003.92 × 3,622.16
4. Step 4: Simplify right side
   8,009.12x = 43,480,118.87
5. Step 5: Solve for x
   x = 43,480,118.87/8,009.12
6. Step 6: Final answer
   x = 5,428.83