Finding the Fourth Proportional to 9,697.50, 13,382.55 and 5,281.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,697.50 : 13,382.55 = 5,281.50 : x
2. Step 2: Convert to fraction form
   9,697.50/13,382.55 = 5,281.50/x
3. Step 3: Cross multiply
   9,697.50x = 13,382.55 × 5,281.50
4. Step 4: Simplify right side
   9,697.50x = 70,679,937.83
5. Step 5: Solve for x
   x = 70,679,937.83/9,697.50
6. Step 6: Final answer
   x = 7,288.47