Finding the Fourth Proportional to 12,802.73, 17,665.61 and 7,136.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,802.73 : 17,665.61 = 7,136.24 : x
2. Step 2: Convert to fraction form
   12,802.73/17,665.61 = 7,136.24/x
3. Step 3: Cross multiply
   12,802.73x = 17,665.61 × 7,136.24
4. Step 4: Simplify right side
   12,802.73x = 126,065,962.22
5. Step 5: Solve for x
   x = 126,065,962.22/12,802.73
6. Step 6: Final answer
   x = 9,846.81