Finding the Fourth Proportional to 14,111.40, 19,469.52 and 8,142.96

Step by Step Solution

1. Step 1: Write the proportion equation
   14,111.40 : 19,469.52 = 8,142.96 : x
2. Step 2: Convert to fraction form
   14,111.40/19,469.52 = 8,142.96/x
3. Step 3: Cross multiply
   14,111.40x = 19,469.52 × 8,142.96
4. Step 4: Simplify right side
   14,111.40x = 158,539,522.58
5. Step 5: Solve for x
   x = 158,539,522.58/14,111.40
6. Step 6: Final answer
   x = 11,234.85