Finding the Fourth Proportional to 8,082.34, 12,130.82 and 3,405.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,082.34 : 12,130.82 = 3,405.82 : x
2. Step 2: Convert to fraction form
   8,082.34/12,130.82 = 3,405.82/x
3. Step 3: Cross multiply
   8,082.34x = 12,130.82 × 3,405.82
4. Step 4: Simplify right side
   8,082.34x = 41,315,389.37
5. Step 5: Solve for x
   x = 41,315,389.37/8,082.34
6. Step 6: Final answer
   x = 5,111.81