Finding the Fourth Proportional to 6,111.75, 8,434.13 and 3,317.25

Step by Step Solution

1. Step 1: Write the proportion equation
   6,111.75 : 8,434.13 = 3,317.25 : x
2. Step 2: Convert to fraction form
   6,111.75/8,434.13 = 3,317.25/x
3. Step 3: Cross multiply
   6,111.75x = 8,434.13 × 3,317.25
4. Step 4: Simplify right side
   6,111.75x = 27,978,132.78
5. Step 5: Solve for x
   x = 27,978,132.78/6,111.75
6. Step 6: Final answer
   x = 4,577.76