Finding the Fourth Proportional to 12,472.98, 17,212.66 and 7,167.41

Step by Step Solution

1. Step 1: Write the proportion equation
   12,472.98 : 17,212.66 = 7,167.41 : x
2. Step 2: Convert to fraction form
   12,472.98/17,212.66 = 7,167.41/x
3. Step 3: Cross multiply
   12,472.98x = 17,212.66 × 7,167.41
4. Step 4: Simplify right side
   12,472.98x = 123,370,191.41
5. Step 5: Solve for x
   x = 123,370,191.41/12,472.98
6. Step 6: Final answer
   x = 9,891.00