Finding the Fourth Proportional to 5,921.51, 8,173.04 and 3,685.10

Step by Step Solution

1. Step 1: Write the proportion equation
   5,921.51 : 8,173.04 = 3,685.10 : x
2. Step 2: Convert to fraction form
   5,921.51/8,173.04 = 3,685.10/x
3. Step 3: Cross multiply
   5,921.51x = 8,173.04 × 3,685.10
4. Step 4: Simplify right side
   5,921.51x = 30,118,469.70
5. Step 5: Solve for x
   x = 30,118,469.70/5,921.51
6. Step 6: Final answer
   x = 5,086.28