Finding the Fourth Proportional to 23,137.91, 31,930.17 and 12,527.51

Step by Step Solution

1. Step 1: Write the proportion equation
   23,137.91 : 31,930.17 = 12,527.51 : x
2. Step 2: Convert to fraction form
   23,137.91/31,930.17 = 12,527.51/x
3. Step 3: Cross multiply
   23,137.91x = 31,930.17 × 12,527.51
4. Step 4: Simplify right side
   23,137.91x = 400,005,523.98
5. Step 5: Solve for x
   x = 400,005,523.98/23,137.91
6. Step 6: Final answer
   x = 17,287.88