Finding the Fourth Proportional to 6,273.10, 8,656.59 and 3,478.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,273.10 : 8,656.59 = 3,478.78 : x
2. Step 2: Convert to fraction form
   6,273.10/8,656.59 = 3,478.78/x
3. Step 3: Cross multiply
   6,273.10x = 8,656.59 × 3,478.78
4. Step 4: Simplify right side
   6,273.10x = 30,114,372.16
5. Step 5: Solve for x
   x = 30,114,372.16/6,273.10
6. Step 6: Final answer
   x = 4,800.56