Finding the Fourth Proportional to 16,559.56, 22,860.67 and 12,774.23

Step by Step Solution

1. Step 1: Write the proportion equation
   16,559.56 : 22,860.67 = 12,774.23 : x
2. Step 2: Convert to fraction form
   16,559.56/22,860.67 = 12,774.23/x
3. Step 3: Cross multiply
   16,559.56x = 22,860.67 × 12,774.23
4. Step 4: Simplify right side
   16,559.56x = 292,027,456.53
5. Step 5: Solve for x
   x = 292,027,456.53/16,559.56
6. Step 6: Final answer
   x = 17,634.98