Finding the Fourth Proportional to 9,673.98, 14,515.07 and 5,286.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,673.98 : 14,515.07 = 5,286.31 : x
2. Step 2: Convert to fraction form
   9,673.98/14,515.07 = 5,286.31/x
3. Step 3: Cross multiply
   9,673.98x = 14,515.07 × 5,286.31
4. Step 4: Simplify right side
   9,673.98x = 76,731,159.69
5. Step 5: Solve for x
   x = 76,731,159.69/9,673.98
6. Step 6: Final answer
   x = 7,931.71