Finding the Fourth Proportional to 6,618.30, 9,132.60 and 3,786.42

Step by Step Solution

1. Step 1: Write the proportion equation
   6,618.30 : 9,132.60 = 3,786.42 : x
2. Step 2: Convert to fraction form
   6,618.30/9,132.60 = 3,786.42/x
3. Step 3: Cross multiply
   6,618.30x = 9,132.60 × 3,786.42
4. Step 4: Simplify right side
   6,618.30x = 34,579,859.29
5. Step 5: Solve for x
   x = 34,579,859.29/6,618.30
6. Step 6: Final answer
   x = 5,224.89