Finding the Fourth Proportional to 12,741.12, 17,577.44 and 9,196.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,741.12 : 17,577.44 = 9,196.48 : x
2. Step 2: Convert to fraction form
   12,741.12/17,577.44 = 9,196.48/x
3. Step 3: Cross multiply
   12,741.12x = 17,577.44 × 9,196.48
4. Step 4: Simplify right side
   12,741.12x = 161,650,575.41
5. Step 5: Solve for x
   x = 161,650,575.41/12,741.12
6. Step 6: Final answer
   x = 12,687.31