Finding the Fourth Proportional to 9,016.49, 12,441.91 and 5,239.62

Step by Step Solution

1. Step 1: Write the proportion equation
   9,016.49 : 12,441.91 = 5,239.62 : x
2. Step 2: Convert to fraction form
   9,016.49/12,441.91 = 5,239.62/x
3. Step 3: Cross multiply
   9,016.49x = 12,441.91 × 5,239.62
4. Step 4: Simplify right side
   9,016.49x = 65,190,880.47
5. Step 5: Solve for x
   x = 65,190,880.47/9,016.49
6. Step 6: Final answer
   x = 7,230.18