Finding the Fourth Proportional to 6,899.78, 9,521.82 and 3,756.02

Step by Step Solution

1. Step 1: Write the proportion equation
   6,899.78 : 9,521.82 = 3,756.02 : x
2. Step 2: Convert to fraction form
   6,899.78/9,521.82 = 3,756.02/x
3. Step 3: Cross multiply
   6,899.78x = 9,521.82 × 3,756.02
4. Step 4: Simplify right side
   6,899.78x = 35,764,146.36
5. Step 5: Solve for x
   x = 35,764,146.36/6,899.78
6. Step 6: Final answer
   x = 5,183.37