Finding the Fourth Proportional to 72,721.14, 109,016.06 and 50,544.96

Step by Step Solution

1. Step 1: Write the proportion equation
   72,721.14 : 109,016.06 = 50,544.96 : x
2. Step 2: Convert to fraction form
   72,721.14/109,016.06 = 50,544.96/x
3. Step 3: Cross multiply
   72,721.14x = 109,016.06 × 50,544.96
4. Step 4: Simplify right side
   72,721.14x = 5,510,212,392.06
5. Step 5: Solve for x
   x = 5,510,212,392.06/72,721.14
6. Step 6: Final answer
   x = 75,771.81