Finding the Fourth Proportional to 16,717.72, 23,068.38 and 9,643

Step by Step Solution

1. Step 1: Write the proportion equation
   16,717.72 : 23,068.38 = 9,643 : x
2. Step 2: Convert to fraction form
   16,717.72/23,068.38 = 9,643/x
3. Step 3: Cross multiply
   16,717.72x = 23,068.38 × 9,643
4. Step 4: Simplify right side
   16,717.72x = 222,448,388.34
5. Step 5: Solve for x
   x = 222,448,388.34/16,717.72
6. Step 6: Final answer
   x = 13,306.14