Finding the Fourth Proportional to 12,321.66, 17,004.06 and 7,016.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,321.66 : 17,004.06 = 7,016.50 : x
2. Step 2: Convert to fraction form
   12,321.66/17,004.06 = 7,016.50/x
3. Step 3: Cross multiply
   12,321.66x = 17,004.06 × 7,016.50
4. Step 4: Simplify right side
   12,321.66x = 119,309,008.25
5. Step 5: Solve for x
   x = 119,309,008.25/12,321.66
6. Step 6: Final answer
   x = 9,682.87