Finding the Fourth Proportional to 6,515.34, 9,767.51 and 4,429.49

Step by Step Solution

1. Step 1: Write the proportion equation
   6,515.34 : 9,767.51 = 4,429.49 : x
2. Step 2: Convert to fraction form
   6,515.34/9,767.51 = 4,429.49/x
3. Step 3: Cross multiply
   6,515.34x = 9,767.51 × 4,429.49
4. Step 4: Simplify right side
   6,515.34x = 43,265,016.88
5. Step 5: Solve for x
   x = 43,265,016.88/6,515.34
6. Step 6: Final answer
   x = 6,640.48