Finding the Fourth Proportional to 72,580.98, 108,843.48 and 28,201.89

Step by Step Solution

1. Step 1: Write the proportion equation
   72,580.98 : 108,843.48 = 28,201.89 : x
2. Step 2: Convert to fraction form
   72,580.98/108,843.48 = 28,201.89/x
3. Step 3: Cross multiply
   72,580.98x = 108,843.48 × 28,201.89
4. Step 4: Simplify right side
   72,580.98x = 3,069,591,850.18
5. Step 5: Solve for x
   x = 3,069,591,850.18/72,580.98
6. Step 6: Final answer
   x = 42,291.96