Finding the Fourth Proportional to 9,019.80, 12,440.52 and 7,956.54

Step by Step Solution

1. Step 1: Write the proportion equation
   9,019.80 : 12,440.52 = 7,956.54 : x
2. Step 2: Convert to fraction form
   9,019.80/12,440.52 = 7,956.54/x
3. Step 3: Cross multiply
   9,019.80x = 12,440.52 × 7,956.54
4. Step 4: Simplify right side
   9,019.80x = 98,983,495.00
5. Step 5: Solve for x
   x = 98,983,495.00/9,019.80
6. Step 6: Final answer
   x = 10,974.02