Finding the Fourth Proportional to 6,218.67, 8,581.55 and 3,386.00

Step by Step Solution

1. Step 1: Write the proportion equation
   6,218.67 : 8,581.55 = 3,386.00 : x
2. Step 2: Convert to fraction form
   6,218.67/8,581.55 = 3,386.00/x
3. Step 3: Cross multiply
   6,218.67x = 8,581.55 × 3,386.00
4. Step 4: Simplify right side
   6,218.67x = 29,057,085.39
5. Step 5: Solve for x
   x = 29,057,085.39/6,218.67
6. Step 6: Final answer
   x = 4,672.56