Finding the Fourth Proportional to 72,950.97, 109,436.03 and 28,571.96

Step by Step Solution

1. Step 1: Write the proportion equation
   72,950.97 : 109,436.03 = 28,571.96 : x
2. Step 2: Convert to fraction form
   72,950.97/109,436.03 = 28,571.96/x
3. Step 3: Cross multiply
   72,950.97x = 109,436.03 × 28,571.96
4. Step 4: Simplify right side
   72,950.97x = 3,126,801,871.72
5. Step 5: Solve for x
   x = 3,126,801,871.72/72,950.97
6. Step 6: Final answer
   x = 42,861.69