Finding the Fourth Proportional to 6,145.38, 8,478.81 and 3,491.82

Step by Step Solution

1. Step 1: Write the proportion equation
   6,145.38 : 8,478.81 = 3,491.82 : x
2. Step 2: Convert to fraction form
   6,145.38/8,478.81 = 3,491.82/x
3. Step 3: Cross multiply
   6,145.38x = 8,478.81 × 3,491.82
4. Step 4: Simplify right side
   6,145.38x = 29,606,478.33
5. Step 5: Solve for x
   x = 29,606,478.33/6,145.38
6. Step 6: Final answer
   x = 4,817.68