Finding the Fourth Proportional to 52,808.12, 72,874.82 and 28,608.56

Step by Step Solution

1. Step 1: Write the proportion equation
   52,808.12 : 72,874.82 = 28,608.56 : x
2. Step 2: Convert to fraction form
   52,808.12/72,874.82 = 28,608.56/x
3. Step 3: Cross multiply
   52,808.12x = 72,874.82 × 28,608.56
4. Step 4: Simplify right side
   52,808.12x = 2,084,843,640.89
5. Step 5: Solve for x
   x = 2,084,843,640.89/52,808.12
6. Step 6: Final answer
   x = 39,479.60