Finding the Fourth Proportional to 23,021.82, 31,767.12 and 12,949.02

Step by Step Solution

1. Step 1: Write the proportion equation
   23,021.82 : 31,767.12 = 12,949.02 : x
2. Step 2: Convert to fraction form
   23,021.82/31,767.12 = 12,949.02/x
3. Step 3: Cross multiply
   23,021.82x = 31,767.12 × 12,949.02
4. Step 4: Simplify right side
   23,021.82x = 411,353,072.22
5. Step 5: Solve for x
   x = 411,353,072.22/23,021.82
6. Step 6: Final answer
   x = 17,867.96