Finding the Fourth Proportional to 9,427.76, 13,007.37 and 5,447.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,427.76 : 13,007.37 = 5,447.42 : x
2. Step 2: Convert to fraction form
   9,427.76/13,007.37 = 5,447.42/x
3. Step 3: Cross multiply
   9,427.76x = 13,007.37 × 5,447.42
4. Step 4: Simplify right side
   9,427.76x = 70,856,556.07
5. Step 5: Solve for x
   x = 70,856,556.07/9,427.76
6. Step 6: Final answer
   x = 7,515.74