Finding the Fourth Proportional to 6,279.78, 9,404.70 and 3,499.56

Step by Step Solution

1. Step 1: Write the proportion equation
   6,279.78 : 9,404.70 = 3,499.56 : x
2. Step 2: Convert to fraction form
   6,279.78/9,404.70 = 3,499.56/x
3. Step 3: Cross multiply
   6,279.78x = 9,404.70 × 3,499.56
4. Step 4: Simplify right side
   6,279.78x = 32,912,311.93
5. Step 5: Solve for x
   x = 32,912,311.93/6,279.78
6. Step 6: Final answer
   x = 5,241.00