Finding the Fourth Proportional to 72,461.16, 108,693.18 and 28,083.24

Step by Step Solution

1. Step 1: Write the proportion equation
   72,461.16 : 108,693.18 = 28,083.24 : x
2. Step 2: Convert to fraction form
   72,461.16/108,693.18 = 28,083.24/x
3. Step 3: Cross multiply
   72,461.16x = 108,693.18 × 28,083.24
4. Step 4: Simplify right side
   72,461.16x = 3,052,456,660.30
5. Step 5: Solve for x
   x = 3,052,456,660.30/72,461.16
6. Step 6: Final answer
   x = 42,125.42