Finding the Fourth Proportional to 16,471.28, 22,706.52 and 10,172.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,471.28 : 22,706.52 = 10,172.72 : x
2. Step 2: Convert to fraction form
   16,471.28/22,706.52 = 10,172.72/x
3. Step 3: Cross multiply
   16,471.28x = 22,706.52 × 10,172.72
4. Step 4: Simplify right side
   16,471.28x = 230,987,070.13
5. Step 5: Solve for x
   x = 230,987,070.13/16,471.28
6. Step 6: Final answer
   x = 14,023.63