Finding the Fourth Proportional to 6,615.82, 9,129.33 and 3,631.18

Step by Step Solution

1. Step 1: Write the proportion equation
   6,615.82 : 9,129.33 = 3,631.18 : x
2. Step 2: Convert to fraction form
   6,615.82/9,129.33 = 3,631.18/x
3. Step 3: Cross multiply
   6,615.82x = 9,129.33 × 3,631.18
4. Step 4: Simplify right side
   6,615.82x = 33,150,240.51
5. Step 5: Solve for x
   x = 33,150,240.51/6,615.82
6. Step 6: Final answer
   x = 5,010.75