Finding the Fourth Proportional to 12,456.85, 17,189.81 and 7,741.03

Step by Step Solution

1. Step 1: Write the proportion equation
   12,456.85 : 17,189.81 = 7,741.03 : x
2. Step 2: Convert to fraction form
   12,456.85/17,189.81 = 7,741.03/x
3. Step 3: Cross multiply
   12,456.85x = 17,189.81 × 7,741.03
4. Step 4: Simplify right side
   12,456.85x = 133,066,796.20
5. Step 5: Solve for x
   x = 133,066,796.20/12,456.85
6. Step 6: Final answer
   x = 10,682.22