Finding the Fourth Proportional to 16,643.69, 22,968.47 and 9,090.24

Step by Step Solution

1. Step 1: Write the proportion equation
   16,643.69 : 22,968.47 = 9,090.24 : x
2. Step 2: Convert to fraction form
   16,643.69/22,968.47 = 9,090.24/x
3. Step 3: Cross multiply
   16,643.69x = 22,968.47 × 9,090.24
4. Step 4: Simplify right side
   16,643.69x = 208,788,904.73
5. Step 5: Solve for x
   x = 208,788,904.73/16,643.69
6. Step 6: Final answer
   x = 12,544.63