Finding the Fourth Proportional to 7,087.30, 9,780.24 and 3,943.42

Step by Step Solution

1. Step 1: Write the proportion equation
   7,087.30 : 9,780.24 = 3,943.42 : x
2. Step 2: Convert to fraction form
   7,087.30/9,780.24 = 3,943.42/x
3. Step 3: Cross multiply
   7,087.30x = 9,780.24 × 3,943.42
4. Step 4: Simplify right side
   7,087.30x = 38,567,594.02
5. Step 5: Solve for x
   x = 38,567,594.02/7,087.30
6. Step 6: Final answer
   x = 5,441.79