Finding the Fourth Proportional to 31,729.98, 43,698.54 and 31,041.18

Step by Step Solution

1. Step 1: Write the proportion equation
   31,729.98 : 43,698.54 = 31,041.18 : x
2. Step 2: Convert to fraction form
   31,729.98/43,698.54 = 31,041.18/x
3. Step 3: Cross multiply
   31,729.98x = 43,698.54 × 31,041.18
4. Step 4: Simplify right side
   31,729.98x = 1,356,454,245.88
5. Step 5: Solve for x
   x = 1,356,454,245.88/31,729.98
6. Step 6: Final answer
   x = 42,749.92