Finding the Fourth Proportional to 31,789.82, 43,868.71 and 17,643.58

Step by Step Solution

1. Step 1: Write the proportion equation
   31,789.82 : 43,868.71 = 17,643.58 : x
2. Step 2: Convert to fraction form
   31,789.82/43,868.71 = 17,643.58/x
3. Step 3: Cross multiply
   31,789.82x = 43,868.71 × 17,643.58
4. Step 4: Simplify right side
   31,789.82x = 774,001,094.38
5. Step 5: Solve for x
   x = 774,001,094.38/31,789.82
6. Step 6: Final answer
   x = 24,347.45