Finding the Fourth Proportional to 5,958.30, 8,212.55 and 4,186.83

Step by Step Solution

1. Step 1: Write the proportion equation
   5,958.30 : 8,212.55 = 4,186.83 : x
2. Step 2: Convert to fraction form
   5,958.30/8,212.55 = 4,186.83/x
3. Step 3: Cross multiply
   5,958.30x = 8,212.55 × 4,186.83
4. Step 4: Simplify right side
   5,958.30x = 34,384,529.78
5. Step 5: Solve for x
   x = 34,384,529.78/5,958.30
6. Step 6: Final answer
   x = 5,770.86