Finding the Fourth Proportional to 6,613.84, 9,128.28 and 3,819.34

Step by Step Solution

1. Step 1: Write the proportion equation
   6,613.84 : 9,128.28 = 3,819.34 : x
2. Step 2: Convert to fraction form
   6,613.84/9,128.28 = 3,819.34/x
3. Step 3: Cross multiply
   6,613.84x = 9,128.28 × 3,819.34
4. Step 4: Simplify right side
   6,613.84x = 34,864,004.94
5. Step 5: Solve for x
   x = 34,864,004.94/6,613.84
6. Step 6: Final answer
   x = 5,271.37