Finding the Fourth Proportional to 9,962.69, 14,952.75 and 5,286.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,962.69 : 14,952.75 = 5,286.15 : x
2. Step 2: Convert to fraction form
   9,962.69/14,952.75 = 5,286.15/x
3. Step 3: Cross multiply
   9,962.69x = 14,952.75 × 5,286.15
4. Step 4: Simplify right side
   9,962.69x = 79,042,528.88
5. Step 5: Solve for x
   x = 79,042,528.88/9,962.69
6. Step 6: Final answer
   x = 7,933.86