Finding the Fourth Proportional to 16,968.29, 23,418.52 and 9,899.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,968.29 : 23,418.52 = 9,899.42 : x
2. Step 2: Convert to fraction form
   16,968.29/23,418.52 = 9,899.42/x
3. Step 3: Cross multiply
   16,968.29x = 23,418.52 × 9,899.42
4. Step 4: Simplify right side
   16,968.29x = 231,829,623.42
5. Step 5: Solve for x
   x = 231,829,623.42/16,968.29
6. Step 6: Final answer
   x = 13,662.53