Finding the Fourth Proportional to 16,168.72, 22,303.71 and 9,706.69

Step by Step Solution

1. Step 1: Write the proportion equation
   16,168.72 : 22,303.71 = 9,706.69 : x
2. Step 2: Convert to fraction form
   16,168.72/22,303.71 = 9,706.69/x
3. Step 3: Cross multiply
   16,168.72x = 22,303.71 × 9,706.69
4. Step 4: Simplify right side
   16,168.72x = 216,495,198.82
5. Step 5: Solve for x
   x = 216,495,198.82/16,168.72
6. Step 6: Final answer
   x = 13,389.75