Finding the Fourth Proportional to 6,128.18, 8,456.23 and 3,610.09

Step by Step Solution

1. Step 1: Write the proportion equation
   6,128.18 : 8,456.23 = 3,610.09 : x
2. Step 2: Convert to fraction form
   6,128.18/8,456.23 = 3,610.09/x
3. Step 3: Cross multiply
   6,128.18x = 8,456.23 × 3,610.09
4. Step 4: Simplify right side
   6,128.18x = 30,527,751.36
5. Step 5: Solve for x
   x = 30,527,751.36/6,128.18
6. Step 6: Final answer
   x = 4,981.54