Finding the Fourth Proportional to 80,829.72, 111,525.34 and 53,231.53

Step by Step Solution

1. Step 1: Write the proportion equation
   80,829.72 : 111,525.34 = 53,231.53 : x
2. Step 2: Convert to fraction form
   80,829.72/111,525.34 = 53,231.53/x
3. Step 3: Cross multiply
   80,829.72x = 111,525.34 × 53,231.53
4. Step 4: Simplify right side
   80,829.72x = 5,936,664,615.05
5. Step 5: Solve for x
   x = 5,936,664,615.05/80,829.72
6. Step 6: Final answer
   x = 73,446.56