Finding the Fourth Proportional to 17,789.58, 26,692.15 and 8,436.27

Step by Step Solution

1. Step 1: Write the proportion equation
   17,789.58 : 26,692.15 = 8,436.27 : x
2. Step 2: Convert to fraction form
   17,789.58/26,692.15 = 8,436.27/x
3. Step 3: Cross multiply
   17,789.58x = 26,692.15 × 8,436.27
4. Step 4: Simplify right side
   17,789.58x = 225,182,184.28
5. Step 5: Solve for x
   x = 225,182,184.28/17,789.58
6. Step 6: Final answer
   x = 12,658.09