Finding the Fourth Proportional to 9,426.75, 13,007.40 and 5,447.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,426.75 : 13,007.40 = 5,447.10 : x
2. Step 2: Convert to fraction form
   9,426.75/13,007.40 = 5,447.10/x
3. Step 3: Cross multiply
   9,426.75x = 13,007.40 × 5,447.10
4. Step 4: Simplify right side
   9,426.75x = 70,852,608.54
5. Step 5: Solve for x
   x = 70,852,608.54/9,426.75
6. Step 6: Final answer
   x = 7,516.12