Finding the Fourth Proportional to 19,196.92, 28,773.42 and 8,086.96

Step by Step Solution

1. Step 1: Write the proportion equation
   19,196.92 : 28,773.42 = 8,086.96 : x
2. Step 2: Convert to fraction form
   19,196.92/28,773.42 = 8,086.96/x
3. Step 3: Cross multiply
   19,196.92x = 28,773.42 × 8,086.96
4. Step 4: Simplify right side
   19,196.92x = 232,689,496.60
5. Step 5: Solve for x
   x = 232,689,496.60/19,196.92
6. Step 6: Final answer
   x = 12,121.19