Finding the Fourth Proportional to 14,660.73, 21,990.78 and 3,567.48

Step by Step Solution

1. Step 1: Write the proportion equation
   14,660.73 : 21,990.78 = 3,567.48 : x
2. Step 2: Convert to fraction form
   14,660.73/21,990.78 = 3,567.48/x
3. Step 3: Cross multiply
   14,660.73x = 21,990.78 × 3,567.48
4. Step 4: Simplify right side
   14,660.73x = 78,451,667.83
5. Step 5: Solve for x
   x = 78,451,667.83/14,660.73
6. Step 6: Final answer
   x = 5,351.14