Finding the Fourth Proportional to 6,174.32, 8,520.52 and 3,379.80

Step by Step Solution

1. Step 1: Write the proportion equation
   6,174.32 : 8,520.52 = 3,379.80 : x
2. Step 2: Convert to fraction form
   6,174.32/8,520.52 = 3,379.80/x
3. Step 3: Cross multiply
   6,174.32x = 8,520.52 × 3,379.80
4. Step 4: Simplify right side
   6,174.32x = 28,797,653.50
5. Step 5: Solve for x
   x = 28,797,653.50/6,174.32
6. Step 6: Final answer
   x = 4,664.10