Finding the Fourth Proportional to 6,131.18, 8,460.36 and 3,613.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,131.18 : 8,460.36 = 3,613.10 : x
2. Step 2: Convert to fraction form
   6,131.18/8,460.36 = 3,613.10/x
3. Step 3: Cross multiply
   6,131.18x = 8,460.36 × 3,613.10
4. Step 4: Simplify right side
   6,131.18x = 30,568,126.72
5. Step 5: Solve for x
   x = 30,568,126.72/6,131.18
6. Step 6: Final answer
   x = 4,985.68