Finding the Fourth Proportional to 6,434.98, 9,645.89 and 4,355.19

Step by Step Solution

1. Step 1: Write the proportion equation
   6,434.98 : 9,645.89 = 4,355.19 : x
2. Step 2: Convert to fraction form
   6,434.98/9,645.89 = 4,355.19/x
3. Step 3: Cross multiply
   6,434.98x = 9,645.89 × 4,355.19
4. Step 4: Simplify right side
   6,434.98x = 42,009,661.89
5. Step 5: Solve for x
   x = 42,009,661.89/6,434.98
6. Step 6: Final answer
   x = 6,528.33