Finding the Fourth Proportional to 53,728.32, 80,198.04 and 49,769.82

Step by Step Solution

1. Step 1: Write the proportion equation
   53,728.32 : 80,198.04 = 49,769.82 : x
2. Step 2: Convert to fraction form
   53,728.32/80,198.04 = 49,769.82/x
3. Step 3: Cross multiply
   53,728.32x = 80,198.04 × 49,769.82
4. Step 4: Simplify right side
   53,728.32x = 3,991,442,015.15
5. Step 5: Solve for x
   x = 3,991,442,015.15/53,728.32
6. Step 6: Final answer
   x = 74,289.35