Finding the Fourth Proportional to 6,648.89, 9,966.24 and 3,526.94

Step by Step Solution

1. Step 1: Write the proportion equation
   6,648.89 : 9,966.24 = 3,526.94 : x
2. Step 2: Convert to fraction form
   6,648.89/9,966.24 = 3,526.94/x
3. Step 3: Cross multiply
   6,648.89x = 9,966.24 × 3,526.94
4. Step 4: Simplify right side
   6,648.89x = 35,150,330.51
5. Step 5: Solve for x
   x = 35,150,330.51/6,648.89
6. Step 6: Final answer
   x = 5,286.65