Finding the Fourth Proportional to 52,617.22, 72,610.85 and 28,743.28

Step by Step Solution

1. Step 1: Write the proportion equation
   52,617.22 : 72,610.85 = 28,743.28 : x
2. Step 2: Convert to fraction form
   52,617.22/72,610.85 = 28,743.28/x
3. Step 3: Cross multiply
   52,617.22x = 72,610.85 × 28,743.28
4. Step 4: Simplify right side
   52,617.22x = 2,087,073,992.59
5. Step 5: Solve for x
   x = 2,087,073,992.59/52,617.22
6. Step 6: Final answer
   x = 39,665.23