Finding the Fourth Proportional to 23,142.61, 31,936.62 and 12,532.25

Step by Step Solution

1. Step 1: Write the proportion equation
   23,142.61 : 31,936.62 = 12,532.25 : x
2. Step 2: Convert to fraction form
   23,142.61/31,936.62 = 12,532.25/x
3. Step 3: Cross multiply
   23,142.61x = 31,936.62 × 12,532.25
4. Step 4: Simplify right side
   23,142.61x = 400,237,655.60
5. Step 5: Solve for x
   x = 400,237,655.60/23,142.61
6. Step 6: Final answer
   x = 17,294.40