Finding the Fourth Proportional to 12,281.88, 18,441.28 and 7,022.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,281.88 : 18,441.28 = 7,022.83 : x
2. Step 2: Convert to fraction form
   12,281.88/18,441.28 = 7,022.83/x
3. Step 3: Cross multiply
   12,281.88x = 18,441.28 × 7,022.83
4. Step 4: Simplify right side
   12,281.88x = 129,510,024.16
5. Step 5: Solve for x
   x = 129,510,024.16/12,281.88
6. Step 6: Final answer
   x = 10,544.80