Finding the Fourth Proportional to 3,300.04, 4,930.72 and 3,185.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,300.04 : 4,930.72 = 3,185.28 : x
2. Step 2: Convert to fraction form
   3,300.04/4,930.72 = 3,185.28/x
3. Step 3: Cross multiply
   3,300.04x = 4,930.72 × 3,185.28
4. Step 4: Simplify right side
   3,300.04x = 15,705,723.80
5. Step 5: Solve for x
   x = 15,705,723.80/3,300.04
6. Step 6: Final answer
   x = 4,759.25