Finding the Fourth Proportional to 8,082.98, 12,129.15 and 3,402.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,082.98 : 12,129.15 = 3,402.69 : x
2. Step 2: Convert to fraction form
   8,082.98/12,129.15 = 3,402.69/x
3. Step 3: Cross multiply
   8,082.98x = 12,129.15 × 3,402.69
4. Step 4: Simplify right side
   8,082.98x = 41,271,737.41
5. Step 5: Solve for x
   x = 41,271,737.41/8,082.98
6. Step 6: Final answer
   x = 5,106.01