Finding the Fourth Proportional to 6,174, 8,520.15 and 3,379.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,174 : 8,520.15 = 3,379.50 : x
2. Step 2: Convert to fraction form
   6,174/8,520.15 = 3,379.50/x
3. Step 3: Cross multiply
   6,174x = 8,520.15 × 3,379.50
4. Step 4: Simplify right side
   6,174x = 28,793,846.93
5. Step 5: Solve for x
   x = 28,793,846.93/6,174
6. Step 6: Final answer
   x = 4,663.73