Finding the Fourth Proportional to 5,870.81, 8,105.97 and 3,778.58

Step by Step Solution

1. Step 1: Write the proportion equation
   5,870.81 : 8,105.97 = 3,778.58 : x
2. Step 2: Convert to fraction form
   5,870.81/8,105.97 = 3,778.58/x
3. Step 3: Cross multiply
   5,870.81x = 8,105.97 × 3,778.58
4. Step 4: Simplify right side
   5,870.81x = 30,629,090.56
5. Step 5: Solve for x
   x = 30,629,090.56/5,870.81
6. Step 6: Final answer
   x = 5,217.18