Finding the Fourth Proportional to 31,698.83, 43,738.12 and 18,086.58

Step by Step Solution

1. Step 1: Write the proportion equation
   31,698.83 : 43,738.12 = 18,086.58 : x
2. Step 2: Convert to fraction form
   31,698.83/43,738.12 = 18,086.58/x
3. Step 3: Cross multiply
   31,698.83x = 43,738.12 × 18,086.58
4. Step 4: Simplify right side
   31,698.83x = 791,073,029.04
5. Step 5: Solve for x
   x = 791,073,029.04/31,698.83
6. Step 6: Final answer
   x = 24,955.90