Finding the Fourth Proportional to 5,491.50, 7,578.27 and 3,007.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,491.50 : 7,578.27 = 3,007.50 : x
2. Step 2: Convert to fraction form
   5,491.50/7,578.27 = 3,007.50/x
3. Step 3: Cross multiply
   5,491.50x = 7,578.27 × 3,007.50
4. Step 4: Simplify right side
   5,491.50x = 22,791,647.03
5. Step 5: Solve for x
   x = 22,791,647.03/5,491.50
6. Step 6: Final answer
   x = 4,150.35