Finding the Fourth Proportional to 13,404.36, 18,496.56 and 7,435.92

Step by Step Solution

1. Step 1: Write the proportion equation
   13,404.36 : 18,496.56 = 7,435.92 : x
2. Step 2: Convert to fraction form
   13,404.36/18,496.56 = 7,435.92/x
3. Step 3: Cross multiply
   13,404.36x = 18,496.56 × 7,435.92
4. Step 4: Simplify right side
   13,404.36x = 137,538,940.44
5. Step 5: Solve for x
   x = 137,538,940.44/13,404.36
6. Step 6: Final answer
   x = 10,260.76