Finding the Fourth Proportional to 6,211.72, 8,572.33 and 3,379.25

Step by Step Solution

1. Step 1: Write the proportion equation
   6,211.72 : 8,572.33 = 3,379.25 : x
2. Step 2: Convert to fraction form
   6,211.72/8,572.33 = 3,379.25/x
3. Step 3: Cross multiply
   6,211.72x = 8,572.33 × 3,379.25
4. Step 4: Simplify right side
   6,211.72x = 28,968,059.14
5. Step 5: Solve for x
   x = 28,968,059.14/6,211.72
6. Step 6: Final answer
   x = 4,663.45