Finding the Fourth Proportional to 31,591.92, 43,599.15 and 18,167.39

Step by Step Solution

1. Step 1: Write the proportion equation
   31,591.92 : 43,599.15 = 18,167.39 : x
2. Step 2: Convert to fraction form
   31,591.92/43,599.15 = 18,167.39/x
3. Step 3: Cross multiply
   31,591.92x = 43,599.15 × 18,167.39
4. Step 4: Simplify right side
   31,591.92x = 792,082,452.89
5. Step 5: Solve for x
   x = 792,082,452.89/31,591.92
6. Step 6: Final answer
   x = 25,072.31