Finding the Fourth Proportional to 14,443.56, 19,912.91 and 12,967.34

Step by Step Solution

1. Step 1: Write the proportion equation
   14,443.56 : 19,912.91 = 12,967.34 : x
2. Step 2: Convert to fraction form
   14,443.56/19,912.91 = 12,967.34/x
3. Step 3: Cross multiply
   14,443.56x = 19,912.91 × 12,967.34
4. Step 4: Simplify right side
   14,443.56x = 258,217,309.96
5. Step 5: Solve for x
   x = 258,217,309.96/14,443.56
6. Step 6: Final answer
   x = 17,877.68