Finding the Fourth Proportional to 6,641.19, 9,164.61 and 3,616.18

Step by Step Solution

1. Step 1: Write the proportion equation
   6,641.19 : 9,164.61 = 3,616.18 : x
2. Step 2: Convert to fraction form
   6,641.19/9,164.61 = 3,616.18/x
3. Step 3: Cross multiply
   6,641.19x = 9,164.61 × 3,616.18
4. Step 4: Simplify right side
   6,641.19x = 33,140,856.48
5. Step 5: Solve for x
   x = 33,140,856.48/6,641.19
6. Step 6: Final answer
   x = 4,990.20