Finding the Fourth Proportional to 23,137.57, 31,929.94 and 12,527.18

Step by Step Solution

1. Step 1: Write the proportion equation
   23,137.57 : 31,929.94 = 12,527.18 : x
2. Step 2: Convert to fraction form
   23,137.57/31,929.94 = 12,527.18/x
3. Step 3: Cross multiply
   23,137.57x = 31,929.94 × 12,527.18
4. Step 4: Simplify right side
   23,137.57x = 399,992,105.77
5. Step 5: Solve for x
   x = 399,992,105.77/23,137.57
6. Step 6: Final answer
   x = 17,287.56