Finding the Fourth Proportional to 6,412.16, 9,610.89 and 2,942.12

Step by Step Solution

1. Step 1: Write the proportion equation
   6,412.16 : 9,610.89 = 2,942.12 : x
2. Step 2: Convert to fraction form
   6,412.16/9,610.89 = 2,942.12/x
3. Step 3: Cross multiply
   6,412.16x = 9,610.89 × 2,942.12
4. Step 4: Simplify right side
   6,412.16x = 28,276,391.69
5. Step 5: Solve for x
   x = 28,276,391.69/6,412.16
6. Step 6: Final answer
   x = 4,409.81