Finding the Fourth Proportional to 8,488.89, 12,726.95 and 3,559.94

Step by Step Solution

1. Step 1: Write the proportion equation
   8,488.89 : 12,726.95 = 3,559.94 : x
2. Step 2: Convert to fraction form
   8,488.89/12,726.95 = 3,559.94/x
3. Step 3: Cross multiply
   8,488.89x = 12,726.95 × 3,559.94
4. Step 4: Simplify right side
   8,488.89x = 45,307,096.95
5. Step 5: Solve for x
   x = 45,307,096.95/8,488.89
6. Step 6: Final answer
   x = 5,337.22