Finding the Fourth Proportional to 13,404.69, 18,498.69 and 7,354.53

Step by Step Solution

1. Step 1: Write the proportion equation
   13,404.69 : 18,498.69 = 7,354.53 : x
2. Step 2: Convert to fraction form
   13,404.69/18,498.69 = 7,354.53/x
3. Step 3: Cross multiply
   13,404.69x = 18,498.69 × 7,354.53
4. Step 4: Simplify right side
   13,404.69x = 136,049,170.57
5. Step 5: Solve for x
   x = 136,049,170.57/13,404.69
6. Step 6: Final answer
   x = 10,149.37