Finding the Fourth Proportional to 16,222.87, 22,385.53 and 9,506.96

Step by Step Solution

1. Step 1: Write the proportion equation
   16,222.87 : 22,385.53 = 9,506.96 : x
2. Step 2: Convert to fraction form
   16,222.87/22,385.53 = 9,506.96/x
3. Step 3: Cross multiply
   16,222.87x = 22,385.53 × 9,506.96
4. Step 4: Simplify right side
   16,222.87x = 212,818,258.56
5. Step 5: Solve for x
   x = 212,818,258.56/16,222.87
6. Step 6: Final answer
   x = 13,118.41