Finding the Fourth Proportional to 5,776.76, 8,673.24 and 3,578.96

Step by Step Solution

1. Step 1: Write the proportion equation
   5,776.76 : 8,673.24 = 3,578.96 : x
2. Step 2: Convert to fraction form
   5,776.76/8,673.24 = 3,578.96/x
3. Step 3: Cross multiply
   5,776.76x = 8,673.24 × 3,578.96
4. Step 4: Simplify right side
   5,776.76x = 31,041,179.03
5. Step 5: Solve for x
   x = 31,041,179.03/5,776.76
6. Step 6: Final answer
   x = 5,373.46