Finding the Fourth Proportional to 6,100.80, 9,141.60 and 3,174.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,100.80 : 9,141.60 = 3,174.72 : x
2. Step 2: Convert to fraction form
   6,100.80/9,141.60 = 3,174.72/x
3. Step 3: Cross multiply
   6,100.80x = 9,141.60 × 3,174.72
4. Step 4: Simplify right side
   6,100.80x = 29,022,020.35
5. Step 5: Solve for x
   x = 29,022,020.35/6,100.80
6. Step 6: Final answer
   x = 4,757.08