Finding the Fourth Proportional to 7,206.68, 9,945.33 and 4,019.89

Step by Step Solution

1. Step 1: Write the proportion equation
   7,206.68 : 9,945.33 = 4,019.89 : x
2. Step 2: Convert to fraction form
   7,206.68/9,945.33 = 4,019.89/x
3. Step 3: Cross multiply
   7,206.68x = 9,945.33 × 4,019.89
4. Step 4: Simplify right side
   7,206.68x = 39,979,082.89
5. Step 5: Solve for x
   x = 39,979,082.89/7,206.68
6. Step 6: Final answer
   x = 5,547.50