Finding the Fourth Proportional to 40,404.04, 60,609.57 and 12,330.42

Step by Step Solution

1. Step 1: Write the proportion equation
   40,404.04 : 60,609.57 = 12,330.42 : x
2. Step 2: Convert to fraction form
   40,404.04/60,609.57 = 12,330.42/x
3. Step 3: Cross multiply
   40,404.04x = 60,609.57 × 12,330.42
4. Step 4: Simplify right side
   40,404.04x = 747,341,180.59
5. Step 5: Solve for x
   x = 747,341,180.59/40,404.04
6. Step 6: Final answer
   x = 18,496.70