Finding the Fourth Proportional to 33,020.16, 49,529.72 and 13,298.28

Step by Step Solution

1. Step 1: Write the proportion equation
   33,020.16 : 49,529.72 = 13,298.28 : x
2. Step 2: Convert to fraction form
   33,020.16/49,529.72 = 13,298.28/x
3. Step 3: Cross multiply
   33,020.16x = 49,529.72 × 13,298.28
4. Step 4: Simplify right side
   33,020.16x = 658,660,084.88
5. Step 5: Solve for x
   x = 658,660,084.88/33,020.16
6. Step 6: Final answer
   x = 19,947.21