Finding the Fourth Proportional to 13,404.43, 18,498.23 and 7,436.49

Step by Step Solution

1. Step 1: Write the proportion equation
   13,404.43 : 18,498.23 = 7,436.49 : x
2. Step 2: Convert to fraction form
   13,404.43/18,498.23 = 7,436.49/x
3. Step 3: Cross multiply
   13,404.43x = 18,498.23 × 7,436.49
4. Step 4: Simplify right side
   13,404.43x = 137,561,902.41
5. Step 5: Solve for x
   x = 137,561,902.41/13,404.43
6. Step 6: Final answer
   x = 10,262.42