Finding the Fourth Proportional to 4,101.63, 5,662.89 and 3,155.55

Step by Step Solution

1. Step 1: Write the proportion equation
   4,101.63 : 5,662.89 = 3,155.55 : x
2. Step 2: Convert to fraction form
   4,101.63/5,662.89 = 3,155.55/x
3. Step 3: Cross multiply
   4,101.63x = 5,662.89 × 3,155.55
4. Step 4: Simplify right side
   4,101.63x = 17,869,532.54
5. Step 5: Solve for x
   x = 17,869,532.54/4,101.63
6. Step 6: Final answer
   x = 4,356.69