Finding the Fourth Proportional to 72,259.55, 108,249.07 and 53,249.69

Step by Step Solution

1. Step 1: Write the proportion equation
   72,259.55 : 108,249.07 = 53,249.69 : x
2. Step 2: Convert to fraction form
   72,259.55/108,249.07 = 53,249.69/x
3. Step 3: Cross multiply
   72,259.55x = 108,249.07 × 53,249.69
4. Step 4: Simplify right side
   72,259.55x = 5,764,229,557.79
5. Step 5: Solve for x
   x = 5,764,229,557.79/72,259.55
6. Step 6: Final answer
   x = 79,771.18