Finding the Fourth Proportional to 31,681.82, 43,725.83 and 18,069.89

Step by Step Solution

1. Step 1: Write the proportion equation
   31,681.82 : 43,725.83 = 18,069.89 : x
2. Step 2: Convert to fraction form
   31,681.82/43,725.83 = 18,069.89/x
3. Step 3: Cross multiply
   31,681.82x = 43,725.83 × 18,069.89
4. Step 4: Simplify right side
   31,681.82x = 790,120,629.28
5. Step 5: Solve for x
   x = 790,120,629.28/31,681.82
6. Step 6: Final answer
   x = 24,939.24