Finding the Fourth Proportional to 52,660.87, 72,673.59 and 28,788.82

Step by Step Solution

1. Step 1: Write the proportion equation
   52,660.87 : 72,673.59 = 28,788.82 : x
2. Step 2: Convert to fraction form
   52,660.87/72,673.59 = 28,788.82/x
3. Step 3: Cross multiply
   52,660.87x = 72,673.59 × 28,788.82
4. Step 4: Simplify right side
   52,660.87x = 2,092,187,010.98
5. Step 5: Solve for x
   x = 2,092,187,010.98/52,660.87
6. Step 6: Final answer
   x = 39,729.44