Finding the Fourth Proportional to 5,915.46, 8,167.43 and 3,678.34

Step by Step Solution

1. Step 1: Write the proportion equation
   5,915.46 : 8,167.43 = 3,678.34 : x
2. Step 2: Convert to fraction form
   5,915.46/8,167.43 = 3,678.34/x
3. Step 3: Cross multiply
   5,915.46x = 8,167.43 × 3,678.34
4. Step 4: Simplify right side
   5,915.46x = 30,042,584.47
5. Step 5: Solve for x
   x = 30,042,584.47/5,915.46
6. Step 6: Final answer
   x = 5,078.66