Finding the Fourth Proportional to 72,435.56, 108,609.42 and 28,024.88

Step by Step Solution

1. Step 1: Write the proportion equation
   72,435.56 : 108,609.42 = 28,024.88 : x
2. Step 2: Convert to fraction form
   72,435.56/108,609.42 = 28,024.88/x
3. Step 3: Cross multiply
   72,435.56x = 108,609.42 × 28,024.88
4. Step 4: Simplify right side
   72,435.56x = 3,043,765,962.37
5. Step 5: Solve for x
   x = 3,043,765,962.37/72,435.56
6. Step 6: Final answer
   x = 42,020.33