Finding the Fourth Proportional to 21,855.38, 32,783.24 and 7,064.29

Step by Step Solution

1. Step 1: Write the proportion equation
   21,855.38 : 32,783.24 = 7,064.29 : x
2. Step 2: Convert to fraction form
   21,855.38/32,783.24 = 7,064.29/x
3. Step 3: Cross multiply
   21,855.38x = 32,783.24 × 7,064.29
4. Step 4: Simplify right side
   21,855.38x = 231,590,314.50
5. Step 5: Solve for x
   x = 231,590,314.50/21,855.38
6. Step 6: Final answer
   x = 10,596.49