Finding the Fourth Proportional to 52,757.89, 72,806.31 and 28,884.76

Step by Step Solution

1. Step 1: Write the proportion equation
   52,757.89 : 72,806.31 = 28,884.76 : x
2. Step 2: Convert to fraction form
   52,757.89/72,806.31 = 28,884.76/x
3. Step 3: Cross multiply
   52,757.89x = 72,806.31 × 28,884.76
4. Step 4: Simplify right side
   52,757.89x = 2,102,992,608.82
5. Step 5: Solve for x
   x = 2,102,992,608.82/52,757.89
6. Step 6: Final answer
   x = 39,861.20