Finding the Fourth Proportional to 31,315.56, 43,215.17 and 17,168.37

Step by Step Solution

1. Step 1: Write the proportion equation
   31,315.56 : 43,215.17 = 17,168.37 : x
2. Step 2: Convert to fraction form
   31,315.56/43,215.17 = 17,168.37/x
3. Step 3: Cross multiply
   31,315.56x = 43,215.17 × 17,168.37
4. Step 4: Simplify right side
   31,315.56x = 741,933,942.33
5. Step 5: Solve for x
   x = 741,933,942.33/31,315.56
6. Step 6: Final answer
   x = 23,692.18