Finding the Fourth Proportional to 6,613.23, 9,912.84 and 3,100.29

Step by Step Solution

1. Step 1: Write the proportion equation
   6,613.23 : 9,912.84 = 3,100.29 : x
2. Step 2: Convert to fraction form
   6,613.23/9,912.84 = 3,100.29/x
3. Step 3: Cross multiply
   6,613.23x = 9,912.84 × 3,100.29
4. Step 4: Simplify right side
   6,613.23x = 30,732,678.72
5. Step 5: Solve for x
   x = 30,732,678.72/6,613.23
6. Step 6: Final answer
   x = 4,647.15