Finding the Fourth Proportional to 52,780.27, 72,836.82 and 28,581.16

Step by Step Solution

1. Step 1: Write the proportion equation
   52,780.27 : 72,836.82 = 28,581.16 : x
2. Step 2: Convert to fraction form
   52,780.27/72,836.82 = 28,581.16/x
3. Step 3: Cross multiply
   52,780.27x = 72,836.82 × 28,581.16
4. Step 4: Simplify right side
   52,780.27x = 2,081,760,806.31
5. Step 5: Solve for x
   x = 2,081,760,806.31/52,780.27
6. Step 6: Final answer
   x = 39,442.03