Finding the Fourth Proportional to 23,168.10, 31,972.01 and 12,557.73

Step by Step Solution

1. Step 1: Write the proportion equation
   23,168.10 : 31,972.01 = 12,557.73 : x
2. Step 2: Convert to fraction form
   23,168.10/31,972.01 = 12,557.73/x
3. Step 3: Cross multiply
   23,168.10x = 31,972.01 × 12,557.73
4. Step 4: Simplify right side
   23,168.10x = 401,495,869.14
5. Step 5: Solve for x
   x = 401,495,869.14/23,168.10
6. Step 6: Final answer
   x = 17,329.68