Finding the Fourth Proportional to 9,353.31, 12,907.97 and 5,375.67

Step by Step Solution

1. Step 1: Write the proportion equation
   9,353.31 : 12,907.97 = 5,375.67 : x
2. Step 2: Convert to fraction form
   9,353.31/12,907.97 = 5,375.67/x
3. Step 3: Cross multiply
   9,353.31x = 12,907.97 × 5,375.67
4. Step 4: Simplify right side
   9,353.31x = 69,388,962.20
5. Step 5: Solve for x
   x = 69,388,962.20/9,353.31
6. Step 6: Final answer
   x = 7,418.66