Finding the Fourth Proportional to 3,628.50, 5,412.62 and 3,507.02

Step by Step Solution

1. Step 1: Write the proportion equation
   3,628.50 : 5,412.62 = 3,507.02 : x
2. Step 2: Convert to fraction form
   3,628.50/5,412.62 = 3,507.02/x
3. Step 3: Cross multiply
   3,628.50x = 5,412.62 × 3,507.02
4. Step 4: Simplify right side
   3,628.50x = 18,982,183.82
5. Step 5: Solve for x
   x = 18,982,183.82/3,628.50
6. Step 6: Final answer
   x = 5,231.42