Finding the Fourth Proportional to 12,271.77, 16,945.88 and 9,122.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,271.77 : 16,945.88 = 9,122.49 : x
2. Step 2: Convert to fraction form
   12,271.77/16,945.88 = 9,122.49/x
3. Step 3: Cross multiply
   12,271.77x = 16,945.88 × 9,122.49
4. Step 4: Simplify right side
   12,271.77x = 154,588,575.23
5. Step 5: Solve for x
   x = 154,588,575.23/12,271.77
6. Step 6: Final answer
   x = 12,597.09