Finding the Fourth Proportional to 6,399.51, 9,595.16 and 4,419.60

Step by Step Solution

1. Step 1: Write the proportion equation
   6,399.51 : 9,595.16 = 4,419.60 : x
2. Step 2: Convert to fraction form
   6,399.51/9,595.16 = 4,419.60/x
3. Step 3: Cross multiply
   6,399.51x = 9,595.16 × 4,419.60
4. Step 4: Simplify right side
   6,399.51x = 42,406,752.49
5. Step 5: Solve for x
   x = 42,406,752.49/6,399.51
6. Step 6: Final answer
   x = 6,626.56