Finding the Fourth Proportional to 3,642.85, 5,468.61 and 3,494.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,642.85 : 5,468.61 = 3,494.31 : x
2. Step 2: Convert to fraction form
   3,642.85/5,468.61 = 3,494.31/x
3. Step 3: Cross multiply
   3,642.85x = 5,468.61 × 3,494.31
4. Step 4: Simplify right side
   3,642.85x = 19,109,018.61
5. Step 5: Solve for x
   x = 19,109,018.61/3,642.85
6. Step 6: Final answer
   x = 5,245.63