Finding the Fourth Proportional to 7,218.56, 9,960.94 and 4,233.83

Step by Step Solution

1. Step 1: Write the proportion equation
   7,218.56 : 9,960.94 = 4,233.83 : x
2. Step 2: Convert to fraction form
   7,218.56/9,960.94 = 4,233.83/x
3. Step 3: Cross multiply
   7,218.56x = 9,960.94 × 4,233.83
4. Step 4: Simplify right side
   7,218.56x = 42,172,882.09
5. Step 5: Solve for x
   x = 42,172,882.09/7,218.56
6. Step 6: Final answer
   x = 5,842.28