Finding the Fourth Proportional to 6,410.36, 9,609.72 and 3,122.84

Step by Step Solution

1. Step 1: Write the proportion equation
   6,410.36 : 9,609.72 = 3,122.84 : x
2. Step 2: Convert to fraction form
   6,410.36/9,609.72 = 3,122.84/x
3. Step 3: Cross multiply
   6,410.36x = 9,609.72 × 3,122.84
4. Step 4: Simplify right side
   6,410.36x = 30,009,618.00
5. Step 5: Solve for x
   x = 30,009,618.00/6,410.36
6. Step 6: Final answer
   x = 4,681.42