Finding the Fourth Proportional to 22,443.98, 30,971.29 and 12,372.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,443.98 : 30,971.29 = 12,372.50 : x
2. Step 2: Convert to fraction form
   22,443.98/30,971.29 = 12,372.50/x
3. Step 3: Cross multiply
   22,443.98x = 30,971.29 × 12,372.50
4. Step 4: Simplify right side
   22,443.98x = 383,192,285.53
5. Step 5: Solve for x
   x = 383,192,285.53/22,443.98
6. Step 6: Final answer
   x = 17,073.28