Finding the Fourth Proportional to 23,171.58, 31,976.82 and 12,561.24

Step by Step Solution

1. Step 1: Write the proportion equation
   23,171.58 : 31,976.82 = 12,561.24 : x
2. Step 2: Convert to fraction form
   23,171.58/31,976.82 = 12,561.24/x
3. Step 3: Cross multiply
   23,171.58x = 31,976.82 × 12,561.24
4. Step 4: Simplify right side
   23,171.58x = 401,668,510.46
5. Step 5: Solve for x
   x = 401,668,510.46/23,171.58
6. Step 6: Final answer
   x = 17,334.53