Finding the Fourth Proportional to 23,146.38, 31,942.31 and 12,937

Step by Step Solution

1. Step 1: Write the proportion equation
   23,146.38 : 31,942.31 = 12,937 : x
2. Step 2: Convert to fraction form
   23,146.38/31,942.31 = 12,937/x
3. Step 3: Cross multiply
   23,146.38x = 31,942.31 × 12,937
4. Step 4: Simplify right side
   23,146.38x = 413,237,664.47
5. Step 5: Solve for x
   x = 413,237,664.47/23,146.38
6. Step 6: Final answer
   x = 17,853.23