Finding the Fourth Proportional to 9,762.35, 13,471.98 and 5,286.17

Step by Step Solution

1. Step 1: Write the proportion equation
   9,762.35 : 13,471.98 = 5,286.17 : x
2. Step 2: Convert to fraction form
   9,762.35/13,471.98 = 5,286.17/x
3. Step 3: Cross multiply
   9,762.35x = 13,471.98 × 5,286.17
4. Step 4: Simplify right side
   9,762.35x = 71,215,109.16
5. Step 5: Solve for x
   x = 71,215,109.16/9,762.35
6. Step 6: Final answer
   x = 7,294.88