Finding the Fourth Proportional to 8,574.76, 12,857.82 and 3,641.68

Step by Step Solution

1. Step 1: Write the proportion equation
   8,574.76 : 12,857.82 = 3,641.68 : x
2. Step 2: Convert to fraction form
   8,574.76/12,857.82 = 3,641.68/x
3. Step 3: Cross multiply
   8,574.76x = 12,857.82 × 3,641.68
4. Step 4: Simplify right side
   8,574.76x = 46,824,065.94
5. Step 5: Solve for x
   x = 46,824,065.94/8,574.76
6. Step 6: Final answer
   x = 5,460.69