Finding the Fourth Proportional to 31,857.80, 43,964.89 and 17,518.73

Step by Step Solution

1. Step 1: Write the proportion equation
   31,857.80 : 43,964.89 = 17,518.73 : x
2. Step 2: Convert to fraction form
   31,857.80/43,964.89 = 17,518.73/x
3. Step 3: Cross multiply
   31,857.80x = 43,964.89 × 17,518.73
4. Step 4: Simplify right side
   31,857.80x = 770,208,773.77
5. Step 5: Solve for x
   x = 770,208,773.77/31,857.80
6. Step 6: Final answer
   x = 24,176.46