Finding the Fourth Proportional to 33,311.06, 45,947.57 and 21,355.46

Step by Step Solution

1. Step 1: Write the proportion equation
   33,311.06 : 45,947.57 = 21,355.46 : x
2. Step 2: Convert to fraction form
   33,311.06/45,947.57 = 21,355.46/x
3. Step 3: Cross multiply
   33,311.06x = 45,947.57 × 21,355.46
4. Step 4: Simplify right side
   33,311.06x = 981,231,493.23
5. Step 5: Solve for x
   x = 981,231,493.23/33,311.06
6. Step 6: Final answer
   x = 29,456.63