Finding the Fourth Proportional to 22,443.81, 30,972.04 and 12,372.29

Step by Step Solution

1. Step 1: Write the proportion equation
   22,443.81 : 30,972.04 = 12,372.29 : x
2. Step 2: Convert to fraction form
   22,443.81/30,972.04 = 12,372.29/x
3. Step 3: Cross multiply
   22,443.81x = 30,972.04 × 12,372.29
4. Step 4: Simplify right side
   22,443.81x = 383,195,060.77
5. Step 5: Solve for x
   x = 383,195,060.77/22,443.81
6. Step 6: Final answer
   x = 17,073.53