Finding the Fourth Proportional to 72,902.88, 108,954.85 and 53,222.88

Step by Step Solution

1. Step 1: Write the proportion equation
   72,902.88 : 108,954.85 = 53,222.88 : x
2. Step 2: Convert to fraction form
   72,902.88/108,954.85 = 53,222.88/x
3. Step 3: Cross multiply
   72,902.88x = 108,954.85 × 53,222.88
4. Step 4: Simplify right side
   72,902.88x = 5,798,890,906.97
5. Step 5: Solve for x
   x = 5,798,890,906.97/72,902.88
6. Step 6: Final answer
   x = 79,542.69