Finding the Fourth Proportional to 6,211.86, 9,322.47 and 3,290.82

Step by Step Solution

1. Step 1: Write the proportion equation
   6,211.86 : 9,322.47 = 3,290.82 : x
2. Step 2: Convert to fraction form
   6,211.86/9,322.47 = 3,290.82/x
3. Step 3: Cross multiply
   6,211.86x = 9,322.47 × 3,290.82
4. Step 4: Simplify right side
   6,211.86x = 30,678,570.73
5. Step 5: Solve for x
   x = 30,678,570.73/6,211.86
6. Step 6: Final answer
   x = 4,938.71