Finding the Fourth Proportional to 8,995.20, 12,409.98 and 8,981.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,995.20 : 12,409.98 = 8,981.34 : x
2. Step 2: Convert to fraction form
   8,995.20/12,409.98 = 8,981.34/x
3. Step 3: Cross multiply
   8,995.20x = 12,409.98 × 8,981.34
4. Step 4: Simplify right side
   8,995.20x = 111,458,249.77
5. Step 5: Solve for x
   x = 111,458,249.77/8,995.20
6. Step 6: Final answer
   x = 12,390.86