Finding the Fourth Proportional to 8,082.07, 12,118.05 and 3,638.81

Step by Step Solution

1. Step 1: Write the proportion equation
   8,082.07 : 12,118.05 = 3,638.81 : x
2. Step 2: Convert to fraction form
   8,082.07/12,118.05 = 3,638.81/x
3. Step 3: Cross multiply
   8,082.07x = 12,118.05 × 3,638.81
4. Step 4: Simplify right side
   8,082.07x = 44,095,311.82
5. Step 5: Solve for x
   x = 44,095,311.82/8,082.07
6. Step 6: Final answer
   x = 5,455.94