Finding the Fourth Proportional to 72,574.43, 108,868.49 and 28,204.58

Step by Step Solution

1. Step 1: Write the proportion equation
   72,574.43 : 108,868.49 = 28,204.58 : x
2. Step 2: Convert to fraction form
   72,574.43/108,868.49 = 28,204.58/x
3. Step 3: Cross multiply
   72,574.43x = 108,868.49 × 28,204.58
4. Step 4: Simplify right side
   72,574.43x = 3,070,589,350.32
5. Step 5: Solve for x
   x = 3,070,589,350.32/72,574.43
6. Step 6: Final answer
   x = 42,309.52