Finding the Fourth Proportional to 14,067.96, 19,413.72 and 7,780.38

Step by Step Solution

1. Step 1: Write the proportion equation
   14,067.96 : 19,413.72 = 7,780.38 : x
2. Step 2: Convert to fraction form
   14,067.96/19,413.72 = 7,780.38/x
3. Step 3: Cross multiply
   14,067.96x = 19,413.72 × 7,780.38
4. Step 4: Simplify right side
   14,067.96x = 151,046,118.81
5. Step 5: Solve for x
   x = 151,046,118.81/14,067.96
6. Step 6: Final answer
   x = 10,736.89