Finding the Fourth Proportional to 5,792.78, 8,698.78 and 3,615.35

Step by Step Solution

1. Step 1: Write the proportion equation
   5,792.78 : 8,698.78 = 3,615.35 : x
2. Step 2: Convert to fraction form
   5,792.78/8,698.78 = 3,615.35/x
3. Step 3: Cross multiply
   5,792.78x = 8,698.78 × 3,615.35
4. Step 4: Simplify right side
   5,792.78x = 31,449,134.27
5. Step 5: Solve for x
   x = 31,449,134.27/5,792.78
6. Step 6: Final answer
   x = 5,429.02