Finding the Fourth Proportional to 23,127.78, 31,916.33 and 12,517.41

Step by Step Solution

1. Step 1: Write the proportion equation
   23,127.78 : 31,916.33 = 12,517.41 : x
2. Step 2: Convert to fraction form
   23,127.78/31,916.33 = 12,517.41/x
3. Step 3: Cross multiply
   23,127.78x = 31,916.33 × 12,517.41
4. Step 4: Simplify right side
   23,127.78x = 399,509,725.72
5. Step 5: Solve for x
   x = 399,509,725.72/23,127.78
6. Step 6: Final answer
   x = 17,274.02