Finding the Fourth Proportional to 22,442.81, 30,970.67 and 12,371.29

Step by Step Solution

1. Step 1: Write the proportion equation
   22,442.81 : 30,970.67 = 12,371.29 : x
2. Step 2: Convert to fraction form
   22,442.81/30,970.67 = 12,371.29/x
3. Step 3: Cross multiply
   22,442.81x = 30,970.67 × 12,371.29
4. Step 4: Simplify right side
   22,442.81x = 383,147,000.78
5. Step 5: Solve for x
   x = 383,147,000.78/22,442.81
6. Step 6: Final answer
   x = 17,072.15