Finding the Fourth Proportional to 6,144.84, 8,478.81 and 3,491.28

Step by Step Solution

1. Step 1: Write the proportion equation
   6,144.84 : 8,478.81 = 3,491.28 : x
2. Step 2: Convert to fraction form
   6,144.84/8,478.81 = 3,491.28/x
3. Step 3: Cross multiply
   6,144.84x = 8,478.81 × 3,491.28
4. Step 4: Simplify right side
   6,144.84x = 29,601,899.78
5. Step 5: Solve for x
   x = 29,601,899.78/6,144.84
6. Step 6: Final answer
   x = 4,817.36