Finding the Fourth Proportional to 6,111.88, 8,434.36 and 3,317.38

Step by Step Solution

1. Step 1: Write the proportion equation
   6,111.88 : 8,434.36 = 3,317.38 : x
2. Step 2: Convert to fraction form
   6,111.88/8,434.36 = 3,317.38/x
3. Step 3: Cross multiply
   6,111.88x = 8,434.36 × 3,317.38
4. Step 4: Simplify right side
   6,111.88x = 27,979,960.24
5. Step 5: Solve for x
   x = 27,979,960.24/6,111.88
6. Step 6: Final answer
   x = 4,577.96