Finding the Fourth Proportional to 6,154.38, 8,491.21 and 3,636.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,154.38 : 8,491.21 = 3,636.72 : x
2. Step 2: Convert to fraction form
   6,154.38/8,491.21 = 3,636.72/x
3. Step 3: Cross multiply
   6,154.38x = 8,491.21 × 3,636.72
4. Step 4: Simplify right side
   6,154.38x = 30,880,144.14
5. Step 5: Solve for x
   x = 30,880,144.14/6,154.38
6. Step 6: Final answer
   x = 5,017.59