Finding the Fourth Proportional to 8,009.69, 12,005.01 and 3,328.70

Step by Step Solution

1. Step 1: Write the proportion equation
   8,009.69 : 12,005.01 = 3,328.70 : x
2. Step 2: Convert to fraction form
   8,009.69/12,005.01 = 3,328.70/x
3. Step 3: Cross multiply
   8,009.69x = 12,005.01 × 3,328.70
4. Step 4: Simplify right side
   8,009.69x = 39,961,016.76
5. Step 5: Solve for x
   x = 39,961,016.76/8,009.69
6. Step 6: Final answer
   x = 4,989.09