Finding the Fourth Proportional to 6,222.45, 8,586.69 and 3,389.82

Step by Step Solution

1. Step 1: Write the proportion equation
   6,222.45 : 8,586.69 = 3,389.82 : x
2. Step 2: Convert to fraction form
   6,222.45/8,586.69 = 3,389.82/x
3. Step 3: Cross multiply
   6,222.45x = 8,586.69 × 3,389.82
4. Step 4: Simplify right side
   6,222.45x = 29,107,333.50
5. Step 5: Solve for x
   x = 29,107,333.50/6,222.45
6. Step 6: Final answer
   x = 4,677.79