Finding the Fourth Proportional to 12,443.98, 17,172.69 and 6,854.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,443.98 : 17,172.69 = 6,854.98 : x
2. Step 2: Convert to fraction form
   12,443.98/17,172.69 = 6,854.98/x
3. Step 3: Cross multiply
   12,443.98x = 17,172.69 × 6,854.98
4. Step 4: Simplify right side
   12,443.98x = 117,718,403.56
5. Step 5: Solve for x
   x = 117,718,403.56/12,443.98
6. Step 6: Final answer
   x = 9,459.87