Finding the Fourth Proportional to 8,003.80, 12,005.73 and 3,616.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,003.80 : 12,005.73 = 3,616.12 : x
2. Step 2: Convert to fraction form
   8,003.80/12,005.73 = 3,616.12/x
3. Step 3: Cross multiply
   8,003.80x = 12,005.73 × 3,616.12
4. Step 4: Simplify right side
   8,003.80x = 43,414,160.37
5. Step 5: Solve for x
   x = 43,414,160.37/8,003.80
6. Step 6: Final answer
   x = 5,424.19