Finding the Fourth Proportional to 23,127.37, 31,915.78 and 12,517.01

Step by Step Solution

1. Step 1: Write the proportion equation
   23,127.37 : 31,915.78 = 12,517.01 : x
2. Step 2: Convert to fraction form
   23,127.37/31,915.78 = 12,517.01/x
3. Step 3: Cross multiply
   23,127.37x = 31,915.78 × 12,517.01
4. Step 4: Simplify right side
   23,127.37x = 399,490,137.42
5. Step 5: Solve for x
   x = 399,490,137.42/23,127.37
6. Step 6: Final answer
   x = 17,273.48