Finding the Fourth Proportional to 12,321.98, 17,004.36 and 7,016.81

Step by Step Solution

1. Step 1: Write the proportion equation
   12,321.98 : 17,004.36 = 7,016.81 : x
2. Step 2: Convert to fraction form
   12,321.98/17,004.36 = 7,016.81/x
3. Step 3: Cross multiply
   12,321.98x = 17,004.36 × 7,016.81
4. Step 4: Simplify right side
   12,321.98x = 119,316,304.58
5. Step 5: Solve for x
   x = 119,316,304.58/12,321.98
6. Step 6: Final answer
   x = 9,683.21