Finding the Fourth Proportional to 9,378.85, 12,958.41 and 7,404.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,378.85 : 12,958.41 = 7,404.52 : x
2. Step 2: Convert to fraction form
   9,378.85/12,958.41 = 7,404.52/x
3. Step 3: Cross multiply
   9,378.85x = 12,958.41 × 7,404.52
4. Step 4: Simplify right side
   9,378.85x = 95,950,806.01
5. Step 5: Solve for x
   x = 95,950,806.01/9,378.85
6. Step 6: Final answer
   x = 10,230.55