Finding the Fourth Proportional to 5,517.86, 7,615.89 and 3,279.69

Step by Step Solution

1. Step 1: Write the proportion equation
   5,517.86 : 7,615.89 = 3,279.69 : x
2. Step 2: Convert to fraction form
   5,517.86/7,615.89 = 3,279.69/x
3. Step 3: Cross multiply
   5,517.86x = 7,615.89 × 3,279.69
4. Step 4: Simplify right side
   5,517.86x = 24,977,758.27
5. Step 5: Solve for x
   x = 24,977,758.27/5,517.86
6. Step 6: Final answer
   x = 4,526.72