Finding the Fourth Proportional to 12,661.92, 17,473.50 and 7,072.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,661.92 : 17,473.50 = 7,072.92 : x
2. Step 2: Convert to fraction form
   12,661.92/17,473.50 = 7,072.92/x
3. Step 3: Cross multiply
   12,661.92x = 17,473.50 × 7,072.92
4. Step 4: Simplify right side
   12,661.92x = 123,588,667.62
5. Step 5: Solve for x
   x = 123,588,667.62/12,661.92
6. Step 6: Final answer
   x = 9,760.66