Finding the Fourth Proportional to 6,843.81, 10,266.38 and 3,147.07

Step by Step Solution

1. Step 1: Write the proportion equation
   6,843.81 : 10,266.38 = 3,147.07 : x
2. Step 2: Convert to fraction form
   6,843.81/10,266.38 = 3,147.07/x
3. Step 3: Cross multiply
   6,843.81x = 10,266.38 × 3,147.07
4. Step 4: Simplify right side
   6,843.81x = 32,309,016.51
5. Step 5: Solve for x
   x = 32,309,016.51/6,843.81
6. Step 6: Final answer
   x = 4,720.91