Finding the Fourth Proportional to 23,127.42, 31,915.82 and 12,517.03

Step by Step Solution

1. Step 1: Write the proportion equation
   23,127.42 : 31,915.82 = 12,517.03 : x
2. Step 2: Convert to fraction form
   23,127.42/31,915.82 = 12,517.03/x
3. Step 3: Cross multiply
   23,127.42x = 31,915.82 × 12,517.03
4. Step 4: Simplify right side
   23,127.42x = 399,491,347.60
5. Step 5: Solve for x
   x = 399,491,347.60/23,127.42
6. Step 6: Final answer
   x = 17,273.49