Finding the Fourth Proportional to 12,077.10, 16,661.70 and 9,241.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,077.10 : 16,661.70 = 9,241.49 : x
2. Step 2: Convert to fraction form
   12,077.10/16,661.70 = 9,241.49/x
3. Step 3: Cross multiply
   12,077.10x = 16,661.70 × 9,241.49
4. Step 4: Simplify right side
   12,077.10x = 153,978,975.59
5. Step 5: Solve for x
   x = 153,978,975.59/12,077.10
6. Step 6: Final answer
   x = 12,749.66