Finding the Fourth Proportional to 21,855.30, 32,786.55 and 7,067.94

Step by Step Solution

1. Step 1: Write the proportion equation
   21,855.30 : 32,786.55 = 7,067.94 : x
2. Step 2: Convert to fraction form
   21,855.30/32,786.55 = 7,067.94/x
3. Step 3: Cross multiply
   21,855.30x = 32,786.55 × 7,067.94
4. Step 4: Simplify right side
   21,855.30x = 231,733,368.21
5. Step 5: Solve for x
   x = 231,733,368.21/21,855.30
6. Step 6: Final answer
   x = 10,603.07