Finding the Fourth Proportional to 5,515.78, 7,608.72 and 3,495.49

Step by Step Solution

1. Step 1: Write the proportion equation
   5,515.78 : 7,608.72 = 3,495.49 : x
2. Step 2: Convert to fraction form
   5,515.78/7,608.72 = 3,495.49/x
3. Step 3: Cross multiply
   5,515.78x = 7,608.72 × 3,495.49
4. Step 4: Simplify right side
   5,515.78x = 26,596,166.63
5. Step 5: Solve for x
   x = 26,596,166.63/5,515.78
6. Step 6: Final answer
   x = 4,821.83