Finding the Fourth Proportional to 9,760.46, 13,469.43 and 5,284.21

Step by Step Solution

1. Step 1: Write the proportion equation
   9,760.46 : 13,469.43 = 5,284.21 : x
2. Step 2: Convert to fraction form
   9,760.46/13,469.43 = 5,284.21/x
3. Step 3: Cross multiply
   9,760.46x = 13,469.43 × 5,284.21
4. Step 4: Simplify right side
   9,760.46x = 71,175,333.35
5. Step 5: Solve for x
   x = 71,175,333.35/9,760.46
6. Step 6: Final answer
   x = 7,292.21