Finding the Fourth Proportional to 33,200.28, 45,826.02 and 21,878.10

Step by Step Solution

1. Step 1: Write the proportion equation
   33,200.28 : 45,826.02 = 21,878.10 : x
2. Step 2: Convert to fraction form
   33,200.28/45,826.02 = 21,878.10/x
3. Step 3: Cross multiply
   33,200.28x = 45,826.02 × 21,878.10
4. Step 4: Simplify right side
   33,200.28x = 1,002,586,248.16
5. Step 5: Solve for x
   x = 1,002,586,248.16/33,200.28
6. Step 6: Final answer
   x = 30,198.13