Finding the Fourth Proportional to 31,789.49, 43,867.46 and 19,852.12

Step by Step Solution

1. Step 1: Write the proportion equation
   31,789.49 : 43,867.46 = 19,852.12 : x
2. Step 2: Convert to fraction form
   31,789.49/43,867.46 = 19,852.12/x
3. Step 3: Cross multiply
   31,789.49x = 43,867.46 × 19,852.12
4. Step 4: Simplify right side
   31,789.49x = 870,861,761.42
5. Step 5: Solve for x
   x = 870,861,761.42/31,789.49
6. Step 6: Final answer
   x = 27,394.64