Finding the Fourth Proportional to 9,760.71, 13,469.68 and 5,284.35

Step by Step Solution

1. Step 1: Write the proportion equation
   9,760.71 : 13,469.68 = 5,284.35 : x
2. Step 2: Convert to fraction form
   9,760.71/13,469.68 = 5,284.35/x
3. Step 3: Cross multiply
   9,760.71x = 13,469.68 × 5,284.35
4. Step 4: Simplify right side
   9,760.71x = 71,178,503.51
5. Step 5: Solve for x
   x = 71,178,503.51/9,760.71
6. Step 6: Final answer
   x = 7,292.35