Finding the Fourth Proportional to 5,919.38, 8,171.71 and 3,681.98

Step by Step Solution

1. Step 1: Write the proportion equation
   5,919.38 : 8,171.71 = 3,681.98 : x
2. Step 2: Convert to fraction form
   5,919.38/8,171.71 = 3,681.98/x
3. Step 3: Cross multiply
   5,919.38x = 8,171.71 × 3,681.98
4. Step 4: Simplify right side
   5,919.38x = 30,088,033.95
5. Step 5: Solve for x
   x = 30,088,033.95/5,919.38
6. Step 6: Final answer
   x = 5,082.97