Finding the Fourth Proportional to 6,923.61, 10,368.85 and 3,993.03

Step by Step Solution

1. Step 1: Write the proportion equation
   6,923.61 : 10,368.85 = 3,993.03 : x
2. Step 2: Convert to fraction form
   6,923.61/10,368.85 = 3,993.03/x
3. Step 3: Cross multiply
   6,923.61x = 10,368.85 × 3,993.03
4. Step 4: Simplify right side
   6,923.61x = 41,403,077.27
5. Step 5: Solve for x
   x = 41,403,077.27/6,923.61
6. Step 6: Final answer
   x = 5,979.99