Finding the Fourth Proportional to 3,671.78, 5,495.31 and 3,368.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,671.78 : 5,495.31 = 3,368.30 : x
2. Step 2: Convert to fraction form
   3,671.78/5,495.31 = 3,368.30/x
3. Step 3: Cross multiply
   3,671.78x = 5,495.31 × 3,368.30
4. Step 4: Simplify right side
   3,671.78x = 18,509,825.20
5. Step 5: Solve for x
   x = 18,509,825.20/3,671.78
6. Step 6: Final answer
   x = 5,041.11