Finding the Fourth Proportional to 6,899.42, 9,521.37 and 3,755.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,899.42 : 9,521.37 = 3,755.78 : x
2. Step 2: Convert to fraction form
   6,899.42/9,521.37 = 3,755.78/x
3. Step 3: Cross multiply
   6,899.42x = 9,521.37 × 3,755.78
4. Step 4: Simplify right side
   6,899.42x = 35,760,171.02
5. Step 5: Solve for x
   x = 35,760,171.02/6,899.42
6. Step 6: Final answer
   x = 5,183.07