Finding the Fourth Proportional to 13,404.30, 18,497.94 and 7,436.04

Step by Step Solution

1. Step 1: Write the proportion equation
   13,404.30 : 18,497.94 = 7,436.04 : x
2. Step 2: Convert to fraction form
   13,404.30/18,497.94 = 7,436.04/x
3. Step 3: Cross multiply
   13,404.30x = 18,497.94 × 7,436.04
4. Step 4: Simplify right side
   13,404.30x = 137,551,421.76
5. Step 5: Solve for x
   x = 137,551,421.76/13,404.30
6. Step 6: Final answer
   x = 10,261.74