Finding the Fourth Proportional to 14,078.77, 19,426.55 and 8,109.27

Step by Step Solution

1. Step 1: Write the proportion equation
   14,078.77 : 19,426.55 = 8,109.27 : x
2. Step 2: Convert to fraction form
   14,078.77/19,426.55 = 8,109.27/x
3. Step 3: Cross multiply
   14,078.77x = 19,426.55 × 8,109.27
4. Step 4: Simplify right side
   14,078.77x = 157,535,171.42
5. Step 5: Solve for x
   x = 157,535,171.42/14,078.77
6. Step 6: Final answer
   x = 11,189.55