Finding the Fourth Proportional to 12,556.42, 17,334.71 and 8,583.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,556.42 : 17,334.71 = 8,583.37 : x
2. Step 2: Convert to fraction form
   12,556.42/17,334.71 = 8,583.37/x
3. Step 3: Cross multiply
   12,556.42x = 17,334.71 × 8,583.37
4. Step 4: Simplify right side
   12,556.42x = 148,790,175.71
5. Step 5: Solve for x
   x = 148,790,175.71/12,556.42
6. Step 6: Final answer
   x = 11,849.73