Finding the Fourth Proportional to 52,806.38, 72,872.82 and 28,933.97

Step by Step Solution

1. Step 1: Write the proportion equation
   52,806.38 : 72,872.82 = 28,933.97 : x
2. Step 2: Convert to fraction form
   52,806.38/72,872.82 = 28,933.97/x
3. Step 3: Cross multiply
   52,806.38x = 72,872.82 × 28,933.97
4. Step 4: Simplify right side
   52,806.38x = 2,108,499,623.33
5. Step 5: Solve for x
   x = 2,108,499,623.33/52,806.38
6. Step 6: Final answer
   x = 39,928.88