Finding the Fourth Proportional to 22,443.02, 30,971.76 and 12,371.40

Step by Step Solution

1. Step 1: Write the proportion equation
   22,443.02 : 30,971.76 = 12,371.40 : x
2. Step 2: Convert to fraction form
   22,443.02/30,971.76 = 12,371.40/x
3. Step 3: Cross multiply
   22,443.02x = 30,971.76 × 12,371.40
4. Step 4: Simplify right side
   22,443.02x = 383,164,031.66
5. Step 5: Solve for x
   x = 383,164,031.66/22,443.02
6. Step 6: Final answer
   x = 17,072.75