Finding the Fourth Proportional to 23,170.32, 31,974.78 and 12,559.83

Step by Step Solution

1. Step 1: Write the proportion equation
   23,170.32 : 31,974.78 = 12,559.83 : x
2. Step 2: Convert to fraction form
   23,170.32/31,974.78 = 12,559.83/x
3. Step 3: Cross multiply
   23,170.32x = 31,974.78 × 12,559.83
4. Step 4: Simplify right side
   23,170.32x = 401,597,801.09
5. Step 5: Solve for x
   x = 401,597,801.09/23,170.32
6. Step 6: Final answer
   x = 17,332.42