Finding the Fourth Proportional to 7,085.32, 10,630.28 and 3,387.83

Step by Step Solution

1. Step 1: Write the proportion equation
   7,085.32 : 10,630.28 = 3,387.83 : x
2. Step 2: Convert to fraction form
   7,085.32/10,630.28 = 3,387.83/x
3. Step 3: Cross multiply
   7,085.32x = 10,630.28 × 3,387.83
4. Step 4: Simplify right side
   7,085.32x = 36,013,616.54
5. Step 5: Solve for x
   x = 36,013,616.54/7,085.32
6. Step 6: Final answer
   x = 5,082.85