Finding the Fourth Proportional to 9,531.21, 13,152.71 and 5,282.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,531.21 : 13,152.71 = 5,282.16 : x
2. Step 2: Convert to fraction form
   9,531.21/13,152.71 = 5,282.16/x
3. Step 3: Cross multiply
   9,531.21x = 13,152.71 × 5,282.16
4. Step 4: Simplify right side
   9,531.21x = 69,474,626.48
5. Step 5: Solve for x
   x = 69,474,626.48/9,531.21
6. Step 6: Final answer
   x = 7,289.18