Finding the Fourth Proportional to 21,694.72, 32,550.18 and 8,556.25

Step by Step Solution

1. Step 1: Write the proportion equation
   21,694.72 : 32,550.18 = 8,556.25 : x
2. Step 2: Convert to fraction form
   21,694.72/32,550.18 = 8,556.25/x
3. Step 3: Cross multiply
   21,694.72x = 32,550.18 × 8,556.25
4. Step 4: Simplify right side
   21,694.72x = 278,507,477.63
5. Step 5: Solve for x
   x = 278,507,477.63/21,694.72
6. Step 6: Final answer
   x = 12,837.57