Finding the Fourth Proportional to 8,741.80, 12,035.82 and 8,145.64

Step by Step Solution

1. Step 1: Write the proportion equation
   8,741.80 : 12,035.82 = 8,145.64 : x
2. Step 2: Convert to fraction form
   8,741.80/12,035.82 = 8,145.64/x
3. Step 3: Cross multiply
   8,741.80x = 12,035.82 × 8,145.64
4. Step 4: Simplify right side
   8,741.80x = 98,039,456.82
5. Step 5: Solve for x
   x = 98,039,456.82/8,741.80
6. Step 6: Final answer
   x = 11,215.02