Finding the Fourth Proportional to 3,943.08, 5,442.12 and 3,768.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,943.08 : 5,442.12 = 3,768.12 : x
2. Step 2: Convert to fraction form
   3,943.08/5,442.12 = 3,768.12/x
3. Step 3: Cross multiply
   3,943.08x = 5,442.12 × 3,768.12
4. Step 4: Simplify right side
   3,943.08x = 20,506,561.21
5. Step 5: Solve for x
   x = 20,506,561.21/3,943.08
6. Step 6: Final answer
   x = 5,200.65