Finding the Fourth Proportional to 9,535.28, 13,159.46 and 5,287.67

Step by Step Solution

1. Step 1: Write the proportion equation
   9,535.28 : 13,159.46 = 5,287.67 : x
2. Step 2: Convert to fraction form
   9,535.28/13,159.46 = 5,287.67/x
3. Step 3: Cross multiply
   9,535.28x = 13,159.46 × 5,287.67
4. Step 4: Simplify right side
   9,535.28x = 69,582,848.88
5. Step 5: Solve for x
   x = 69,582,848.88/9,535.28
6. Step 6: Final answer
   x = 7,297.41