Finding the Fourth Proportional to 9,606.76, 13,257.40 and 5,358.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,606.76 : 13,257.40 = 5,358.10 : x
2. Step 2: Convert to fraction form
   9,606.76/13,257.40 = 5,358.10/x
3. Step 3: Cross multiply
   9,606.76x = 13,257.40 × 5,358.10
4. Step 4: Simplify right side
   9,606.76x = 71,034,408.65
5. Step 5: Solve for x
   x = 71,034,408.65/9,606.76
6. Step 6: Final answer
   x = 7,394.21