Finding the Fourth Proportional to 3,723.03, 5,109.73 and 3,406.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,723.03 : 5,109.73 = 3,406.28 : x
2. Step 2: Convert to fraction form
   3,723.03/5,109.73 = 3,406.28/x
3. Step 3: Cross multiply
   3,723.03x = 5,109.73 × 3,406.28
4. Step 4: Simplify right side
   3,723.03x = 17,405,137.04
5. Step 5: Solve for x
   x = 17,405,137.04/3,723.03
6. Step 6: Final answer
   x = 4,674.99