Finding the Fourth Proportional to 6,923.83, 9,555.71 and 3,899.05

Step by Step Solution

1. Step 1: Write the proportion equation
   6,923.83 : 9,555.71 = 3,899.05 : x
2. Step 2: Convert to fraction form
   6,923.83/9,555.71 = 3,899.05/x
3. Step 3: Cross multiply
   6,923.83x = 9,555.71 × 3,899.05
4. Step 4: Simplify right side
   6,923.83x = 37,258,191.08
5. Step 5: Solve for x
   x = 37,258,191.08/6,923.83
6. Step 6: Final answer
   x = 5,381.15