Finding the Fourth Proportional to 14,172.88, 19,561.80 and 9,196.24

Step by Step Solution

1. Step 1: Write the proportion equation
   14,172.88 : 19,561.80 = 9,196.24 : x
2. Step 2: Convert to fraction form
   14,172.88/19,561.80 = 9,196.24/x
3. Step 3: Cross multiply
   14,172.88x = 19,561.80 × 9,196.24
4. Step 4: Simplify right side
   14,172.88x = 179,895,007.63
5. Step 5: Solve for x
   x = 179,895,007.63/14,172.88
6. Step 6: Final answer
   x = 12,692.90