Finding the Fourth Proportional to 14,067.98, 19,413.58 and 7,780.36

Step by Step Solution

1. Step 1: Write the proportion equation
   14,067.98 : 19,413.58 = 7,780.36 : x
2. Step 2: Convert to fraction form
   14,067.98/19,413.58 = 7,780.36/x
3. Step 3: Cross multiply
   14,067.98x = 19,413.58 × 7,780.36
4. Step 4: Simplify right side
   14,067.98x = 151,044,505.32
5. Step 5: Solve for x
   x = 151,044,505.32/14,067.98
6. Step 6: Final answer
   x = 10,736.76