Finding the Fourth Proportional to 12,321.96, 17,004.42 and 7,016.70

Step by Step Solution

1. Step 1: Write the proportion equation
   12,321.96 : 17,004.42 = 7,016.70 : x
2. Step 2: Convert to fraction form
   12,321.96/17,004.42 = 7,016.70/x
3. Step 3: Cross multiply
   12,321.96x = 17,004.42 × 7,016.70
4. Step 4: Simplify right side
   12,321.96x = 119,314,913.81
5. Step 5: Solve for x
   x = 119,314,913.81/12,321.96
6. Step 6: Final answer
   x = 9,683.11