Finding the Fourth Proportional to 13,404.66, 18,497.81 and 7,436.27

Step by Step Solution

1. Step 1: Write the proportion equation
   13,404.66 : 18,497.81 = 7,436.27 : x
2. Step 2: Convert to fraction form
   13,404.66/18,497.81 = 7,436.27/x
3. Step 3: Cross multiply
   13,404.66x = 18,497.81 × 7,436.27
4. Step 4: Simplify right side
   13,404.66x = 137,554,579.90
5. Step 5: Solve for x
   x = 137,554,579.90/13,404.66
6. Step 6: Final answer
   x = 10,261.70