Finding the Fourth Proportional to 14,185.05, 19,573.70 and 8,215.56

Step by Step Solution

1. Step 1: Write the proportion equation
   14,185.05 : 19,573.70 = 8,215.56 : x
2. Step 2: Convert to fraction form
   14,185.05/19,573.70 = 8,215.56/x
3. Step 3: Cross multiply
   14,185.05x = 19,573.70 × 8,215.56
4. Step 4: Simplify right side
   14,185.05x = 160,808,865.69
5. Step 5: Solve for x
   x = 160,808,865.69/14,185.05
6. Step 6: Final answer
   x = 11,336.50