Finding the Fourth Proportional to 28,787.83, 43,185.89 and 9,067.97

Step by Step Solution

1. Step 1: Write the proportion equation
   28,787.83 : 43,185.89 = 9,067.97 : x
2. Step 2: Convert to fraction form
   28,787.83/43,185.89 = 9,067.97/x
3. Step 3: Cross multiply
   28,787.83x = 43,185.89 × 9,067.97
4. Step 4: Simplify right side
   28,787.83x = 391,608,485.58
5. Step 5: Solve for x
   x = 391,608,485.58/28,787.83
6. Step 6: Final answer
   x = 13,603.27