Finding the Fourth Proportional to 7,240.50, 9,991.89 and 4,096.69

Step by Step Solution

1. Step 1: Write the proportion equation
   7,240.50 : 9,991.89 = 4,096.69 : x
2. Step 2: Convert to fraction form
   7,240.50/9,991.89 = 4,096.69/x
3. Step 3: Cross multiply
   7,240.50x = 9,991.89 × 4,096.69
4. Step 4: Simplify right side
   7,240.50x = 40,933,650.86
5. Step 5: Solve for x
   x = 40,933,650.86/7,240.50
6. Step 6: Final answer
   x = 5,653.43