Finding the Fourth Proportional to 9,962.24, 13,747.88 and 5,486.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,962.24 : 13,747.88 = 5,486.12 : x
2. Step 2: Convert to fraction form
   9,962.24/13,747.88 = 5,486.12/x
3. Step 3: Cross multiply
   9,962.24x = 13,747.88 × 5,486.12
4. Step 4: Simplify right side
   9,962.24x = 75,422,519.43
5. Step 5: Solve for x
   x = 75,422,519.43/9,962.24
6. Step 6: Final answer
   x = 7,570.84