Finding the Fourth Proportional to 8,573.54, 12,860.17 and 2,730.07

Step by Step Solution

1. Step 1: Write the proportion equation
   8,573.54 : 12,860.17 = 2,730.07 : x
2. Step 2: Convert to fraction form
   8,573.54/12,860.17 = 2,730.07/x
3. Step 3: Cross multiply
   8,573.54x = 12,860.17 × 2,730.07
4. Step 4: Simplify right side
   8,573.54x = 35,109,164.31
5. Step 5: Solve for x
   x = 35,109,164.31/8,573.54
6. Step 6: Final answer
   x = 4,095.06