Finding the Fourth Proportional to 6,228.82, 8,595.75 and 3,989.98

Step by Step Solution

1. Step 1: Write the proportion equation
   6,228.82 : 8,595.75 = 3,989.98 : x
2. Step 2: Convert to fraction form
   6,228.82/8,595.75 = 3,989.98/x
3. Step 3: Cross multiply
   6,228.82x = 8,595.75 × 3,989.98
4. Step 4: Simplify right side
   6,228.82x = 34,296,870.59
5. Step 5: Solve for x
   x = 34,296,870.59/6,228.82
6. Step 6: Final answer
   x = 5,506.16