Finding the Fourth Proportional to 9,419.42, 14,128.86 and 2,399.41

Step by Step Solution

1. Step 1: Write the proportion equation
   9,419.42 : 14,128.86 = 2,399.41 : x
2. Step 2: Convert to fraction form
   9,419.42/14,128.86 = 2,399.41/x
3. Step 3: Cross multiply
   9,419.42x = 14,128.86 × 2,399.41
4. Step 4: Simplify right side
   9,419.42x = 33,900,940.03
5. Step 5: Solve for x
   x = 33,900,940.03/9,419.42
6. Step 6: Final answer
   x = 3,599.05