Finding the Fourth Proportional to 31,518.77, 43,495.90 and 17,371.61

Step by Step Solution

1. Step 1: Write the proportion equation
   31,518.77 : 43,495.90 = 17,371.61 : x
2. Step 2: Convert to fraction form
   31,518.77/43,495.90 = 17,371.61/x
3. Step 3: Cross multiply
   31,518.77x = 43,495.90 × 17,371.61
4. Step 4: Simplify right side
   31,518.77x = 755,593,982.69
5. Step 5: Solve for x
   x = 755,593,982.69/31,518.77
6. Step 6: Final answer
   x = 23,972.83