Finding the Fourth Proportional to 23,142.24, 31,936.19 and 12,531.83

Step by Step Solution

1. Step 1: Write the proportion equation
   23,142.24 : 31,936.19 = 12,531.83 : x
2. Step 2: Convert to fraction form
   23,142.24/31,936.19 = 12,531.83/x
3. Step 3: Cross multiply
   23,142.24x = 31,936.19 × 12,531.83
4. Step 4: Simplify right side
   23,142.24x = 400,218,681.59
5. Step 5: Solve for x
   x = 400,218,681.59/23,142.24
6. Step 6: Final answer
   x = 17,293.86