Finding the Fourth Proportional to 33,105.20, 49,528.20 and 21,441.20

Step by Step Solution

1. Step 1: Write the proportion equation
   33,105.20 : 49,528.20 = 21,441.20 : x
2. Step 2: Convert to fraction form
   33,105.20/49,528.20 = 21,441.20/x
3. Step 3: Cross multiply
   33,105.20x = 49,528.20 × 21,441.20
4. Step 4: Simplify right side
   33,105.20x = 1,061,944,041.84
5. Step 5: Solve for x
   x = 1,061,944,041.84/33,105.20
6. Step 6: Final answer
   x = 32,077.86