Finding the Fourth Proportional to 9,379.78, 14,076.56 and 4,449.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,379.78 : 14,076.56 = 4,449.42 : x
2. Step 2: Convert to fraction form
   9,379.78/14,076.56 = 4,449.42/x
3. Step 3: Cross multiply
   9,379.78x = 14,076.56 × 4,449.42
4. Step 4: Simplify right side
   9,379.78x = 62,632,538.72
5. Step 5: Solve for x
   x = 62,632,538.72/9,379.78
6. Step 6: Final answer
   x = 6,677.40