Finding the Fourth Proportional to 8,573.58, 12,861.29 and 2,728.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,573.58 : 12,861.29 = 2,728.82 : x
2. Step 2: Convert to fraction form
   8,573.58/12,861.29 = 2,728.82/x
3. Step 3: Cross multiply
   8,573.58x = 12,861.29 × 2,728.82
4. Step 4: Simplify right side
   8,573.58x = 35,096,145.38
5. Step 5: Solve for x
   x = 35,096,145.38/8,573.58
6. Step 6: Final answer
   x = 4,093.52