Finding the Fourth Proportional to 5,585.82, 7,707.86 and 3,228.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,585.82 : 7,707.86 = 3,228.72 : x
2. Step 2: Convert to fraction form
   5,585.82/7,707.86 = 3,228.72/x
3. Step 3: Cross multiply
   5,585.82x = 7,707.86 × 3,228.72
4. Step 4: Simplify right side
   5,585.82x = 24,886,521.74
5. Step 5: Solve for x
   x = 24,886,521.74/5,585.82
6. Step 6: Final answer
   x = 4,455.30