Finding the Fourth Proportional to 6,608.52, 9,916.56 and 5,128.92

Step by Step Solution

1. Step 1: Write the proportion equation
   6,608.52 : 9,916.56 = 5,128.92 : x
2. Step 2: Convert to fraction form
   6,608.52/9,916.56 = 5,128.92/x
3. Step 3: Cross multiply
   6,608.52x = 9,916.56 × 5,128.92
4. Step 4: Simplify right side
   6,608.52x = 50,861,242.92
5. Step 5: Solve for x
   x = 50,861,242.92/6,608.52
6. Step 6: Final answer
   x = 7,696.31