Finding the Fourth Proportional to 12,982.72, 19,474.07 and 3,122

Step by Step Solution

1. Step 1: Write the proportion equation
   12,982.72 : 19,474.07 = 3,122 : x
2. Step 2: Convert to fraction form
   12,982.72/19,474.07 = 3,122/x
3. Step 3: Cross multiply
   12,982.72x = 19,474.07 × 3,122
4. Step 4: Simplify right side
   12,982.72x = 60,798,046.54
5. Step 5: Solve for x
   x = 60,798,046.54/12,982.72
6. Step 6: Final answer
   x = 4,683.00