Finding the Fourth Proportional to 6,680.72, 9,219.55 and 4,326.96

Step by Step Solution

1. Step 1: Write the proportion equation
   6,680.72 : 9,219.55 = 4,326.96 : x
2. Step 2: Convert to fraction form
   6,680.72/9,219.55 = 4,326.96/x
3. Step 3: Cross multiply
   6,680.72x = 9,219.55 × 4,326.96
4. Step 4: Simplify right side
   6,680.72x = 39,892,613.25
5. Step 5: Solve for x
   x = 39,892,613.25/6,680.72
6. Step 6: Final answer
   x = 5,971.30