Finding the Fourth Proportional to 9,019.30, 12,446.78 and 5,040.67

Step by Step Solution

1. Step 1: Write the proportion equation
   9,019.30 : 12,446.78 = 5,040.67 : x
2. Step 2: Convert to fraction form
   9,019.30/12,446.78 = 5,040.67/x
3. Step 3: Cross multiply
   9,019.30x = 12,446.78 × 5,040.67
4. Step 4: Simplify right side
   9,019.30x = 62,740,110.54
5. Step 5: Solve for x
   x = 62,740,110.54/9,019.30
6. Step 6: Final answer
   x = 6,956.21