Finding the Fourth Proportional to 31,858.82, 43,944.81 and 20,542.82

Step by Step Solution

1. Step 1: Write the proportion equation
   31,858.82 : 43,944.81 = 20,542.82 : x
2. Step 2: Convert to fraction form
   31,858.82/43,944.81 = 20,542.82/x
3. Step 3: Cross multiply
   31,858.82x = 43,944.81 × 20,542.82
4. Step 4: Simplify right side
   31,858.82x = 902,750,321.76
5. Step 5: Solve for x
   x = 902,750,321.76/31,858.82
6. Step 6: Final answer
   x = 28,335.96