Finding the Fourth Proportional to 23,127.15, 31,915.41 and 12,516.96

Step by Step Solution

1. Step 1: Write the proportion equation
   23,127.15 : 31,915.41 = 12,516.96 : x
2. Step 2: Convert to fraction form
   23,127.15/31,915.41 = 12,516.96/x
3. Step 3: Cross multiply
   23,127.15x = 31,915.41 × 12,516.96
4. Step 4: Simplify right side
   23,127.15x = 399,483,910.35
5. Step 5: Solve for x
   x = 399,483,910.35/23,127.15
6. Step 6: Final answer
   x = 17,273.37