Finding the Fourth Proportional to 8,003.22, 12,003.42 and 3,619.65

Step by Step Solution

1. Step 1: Write the proportion equation
   8,003.22 : 12,003.42 = 3,619.65 : x
2. Step 2: Convert to fraction form
   8,003.22/12,003.42 = 3,619.65/x
3. Step 3: Cross multiply
   8,003.22x = 12,003.42 × 3,619.65
4. Step 4: Simplify right side
   8,003.22x = 43,448,179.20
5. Step 5: Solve for x
   x = 43,448,179.20/8,003.22
6. Step 6: Final answer
   x = 5,428.84