Finding the Fourth Proportional to 4,182.78, 5,778.78 and 3,559.98

Step by Step Solution

1. Step 1: Write the proportion equation
   4,182.78 : 5,778.78 = 3,559.98 : x
2. Step 2: Convert to fraction form
   4,182.78/5,778.78 = 3,559.98/x
3. Step 3: Cross multiply
   4,182.78x = 5,778.78 × 3,559.98
4. Step 4: Simplify right side
   4,182.78x = 20,572,341.22
5. Step 5: Solve for x
   x = 20,572,341.22/4,182.78
6. Step 6: Final answer
   x = 4,918.34