Finding the Fourth Proportional to 4,131.68, 6,200.15 and 3,858.30

Step by Step Solution

1. Step 1: Write the proportion equation
   4,131.68 : 6,200.15 = 3,858.30 : x
2. Step 2: Convert to fraction form
   4,131.68/6,200.15 = 3,858.30/x
3. Step 3: Cross multiply
   4,131.68x = 6,200.15 × 3,858.30
4. Step 4: Simplify right side
   4,131.68x = 23,922,019.45
5. Step 5: Solve for x
   x = 23,922,019.45/4,131.68
6. Step 6: Final answer
   x = 5,789.91