Finding the Fourth Proportional to 13,078.69, 18,046.33 and 7,412.26

Step by Step Solution

1. Step 1: Write the proportion equation
   13,078.69 : 18,046.33 = 7,412.26 : x
2. Step 2: Convert to fraction form
   13,078.69/18,046.33 = 7,412.26/x
3. Step 3: Cross multiply
   13,078.69x = 18,046.33 × 7,412.26
4. Step 4: Simplify right side
   13,078.69x = 133,764,090.01
5. Step 5: Solve for x
   x = 133,764,090.01/13,078.69
6. Step 6: Final answer
   x = 10,227.64