Finding the Fourth Proportional to 6,219.29, 8,582.56 and 3,386.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,219.29 : 8,582.56 = 3,386.72 : x
2. Step 2: Convert to fraction form
   6,219.29/8,582.56 = 3,386.72/x
3. Step 3: Cross multiply
   6,219.29x = 8,582.56 × 3,386.72
4. Step 4: Simplify right side
   6,219.29x = 29,066,740.59
5. Step 5: Solve for x
   x = 29,066,740.59/6,219.29
6. Step 6: Final answer
   x = 4,673.64