Finding the Fourth Proportional to 31,498.98, 43,449.05 and 18,743.54

Step by Step Solution

1. Step 1: Write the proportion equation
   31,498.98 : 43,449.05 = 18,743.54 : x
2. Step 2: Convert to fraction form
   31,498.98/43,449.05 = 18,743.54/x
3. Step 3: Cross multiply
   31,498.98x = 43,449.05 × 18,743.54
4. Step 4: Simplify right side
   31,498.98x = 814,389,006.64
5. Step 5: Solve for x
   x = 814,389,006.64/31,498.98
6. Step 6: Final answer
   x = 25,854.46