Finding the Fourth Proportional to 6,377.48, 8,801.74 and 4,019.60

Step by Step Solution

1. Step 1: Write the proportion equation
   6,377.48 : 8,801.74 = 4,019.60 : x
2. Step 2: Convert to fraction form
   6,377.48/8,801.74 = 4,019.60/x
3. Step 3: Cross multiply
   6,377.48x = 8,801.74 × 4,019.60
4. Step 4: Simplify right side
   6,377.48x = 35,379,474.10
5. Step 5: Solve for x
   x = 35,379,474.10/6,377.48
6. Step 6: Final answer
   x = 5,547.56