Finding the Fourth Proportional to 22,443.65, 30,972.47 and 12,372.45

Step by Step Solution

1. Step 1: Write the proportion equation
   22,443.65 : 30,972.47 = 12,372.45 : x
2. Step 2: Convert to fraction form
   22,443.65/30,972.47 = 12,372.45/x
3. Step 3: Cross multiply
   22,443.65x = 30,972.47 × 12,372.45
4. Step 4: Simplify right side
   22,443.65x = 383,205,274.59
5. Step 5: Solve for x
   x = 383,205,274.59/22,443.65
6. Step 6: Final answer
   x = 17,074.10