Finding the Fourth Proportional to 31,981.58, 44,137.61 and 18,371.56

Step by Step Solution

1. Step 1: Write the proportion equation
   31,981.58 : 44,137.61 = 18,371.56 : x
2. Step 2: Convert to fraction form
   31,981.58/44,137.61 = 18,371.56/x
3. Step 3: Cross multiply
   31,981.58x = 44,137.61 × 18,371.56
4. Step 4: Simplify right side
   31,981.58x = 810,876,699.82
5. Step 5: Solve for x
   x = 810,876,699.82/31,981.58
6. Step 6: Final answer
   x = 25,354.49