Finding the Fourth Proportional to 12,683.46, 17,502.72 and 7,018.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,683.46 : 17,502.72 = 7,018.18 : x
2. Step 2: Convert to fraction form
   12,683.46/17,502.72 = 7,018.18/x
3. Step 3: Cross multiply
   12,683.46x = 17,502.72 × 7,018.18
4. Step 4: Simplify right side
   12,683.46x = 122,837,239.45
5. Step 5: Solve for x
   x = 122,837,239.45/12,683.46
6. Step 6: Final answer
   x = 9,684.84