Finding the Fourth Proportional to 13,404.96, 18,499.19 and 7,355.48

Step by Step Solution

1. Step 1: Write the proportion equation
   13,404.96 : 18,499.19 = 7,355.48 : x
2. Step 2: Convert to fraction form
   13,404.96/18,499.19 = 7,355.48/x
3. Step 3: Cross multiply
   13,404.96x = 18,499.19 × 7,355.48
4. Step 4: Simplify right side
   13,404.96x = 136,070,292.79
5. Step 5: Solve for x
   x = 136,070,292.79/13,404.96
6. Step 6: Final answer
   x = 10,150.74