Finding the Fourth Proportional to 16,178.72, 22,322.94 and 9,102.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,178.72 : 22,322.94 = 9,102.56 : x
2. Step 2: Convert to fraction form
   16,178.72/22,322.94 = 9,102.56/x
3. Step 3: Cross multiply
   16,178.72x = 22,322.94 × 9,102.56
4. Step 4: Simplify right side
   16,178.72x = 203,195,900.73
5. Step 5: Solve for x
   x = 203,195,900.73/16,178.72
6. Step 6: Final answer
   x = 12,559.45