Finding the Fourth Proportional to 12,172.42, 16,798.53 and 7,456.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,172.42 : 16,798.53 = 7,456.96 : x
2. Step 2: Convert to fraction form
   12,172.42/16,798.53 = 7,456.96/x
3. Step 3: Cross multiply
   12,172.42x = 16,798.53 × 7,456.96
4. Step 4: Simplify right side
   12,172.42x = 125,265,966.27
5. Step 5: Solve for x
   x = 125,265,966.27/12,172.42
6. Step 6: Final answer
   x = 10,290.97