Finding the Fourth Proportional to 23,168.36, 31,972.42 and 12,557.96

Step by Step Solution

1. Step 1: Write the proportion equation
   23,168.36 : 31,972.42 = 12,557.96 : x
2. Step 2: Convert to fraction form
   23,168.36/31,972.42 = 12,557.96/x
3. Step 3: Cross multiply
   23,168.36x = 31,972.42 × 12,557.96
4. Step 4: Simplify right side
   23,168.36x = 401,508,371.46
5. Step 5: Solve for x
   x = 401,508,371.46/23,168.36
6. Step 6: Final answer
   x = 17,330.03