Finding the Fourth Proportional to 72,744.48, 108,941.76 and 50,531.04

Step by Step Solution

1. Step 1: Write the proportion equation
   72,744.48 : 108,941.76 = 50,531.04 : x
2. Step 2: Convert to fraction form
   72,744.48/108,941.76 = 50,531.04/x
3. Step 3: Cross multiply
   72,744.48x = 108,941.76 × 50,531.04
4. Step 4: Simplify right side
   72,744.48x = 5,504,940,432.23
5. Step 5: Solve for x
   x = 5,504,940,432.23/72,744.48
6. Step 6: Final answer
   x = 75,675.03