Finding the Fourth Proportional to 6,279.30, 9,404.55 and 3,687.30

Step by Step Solution

1. Step 1: Write the proportion equation
   6,279.30 : 9,404.55 = 3,687.30 : x
2. Step 2: Convert to fraction form
   6,279.30/9,404.55 = 3,687.30/x
3. Step 3: Cross multiply
   6,279.30x = 9,404.55 × 3,687.30
4. Step 4: Simplify right side
   6,279.30x = 34,677,397.22
5. Step 5: Solve for x
   x = 34,677,397.22/6,279.30
6. Step 6: Final answer
   x = 5,522.49