Finding the Fourth Proportional to 13,404.80, 18,498.71 and 7,436.59

Step by Step Solution

1. Step 1: Write the proportion equation
   13,404.80 : 18,498.71 = 7,436.59 : x
2. Step 2: Convert to fraction form
   13,404.80/18,498.71 = 7,436.59/x
3. Step 3: Cross multiply
   13,404.80x = 18,498.71 × 7,436.59
4. Step 4: Simplify right side
   13,404.80x = 137,567,321.80
5. Step 5: Solve for x
   x = 137,567,321.80/13,404.80
6. Step 6: Final answer
   x = 10,262.54