Finding the Fourth Proportional to 5,513.69, 7,608.94 and 3,155.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,513.69 : 7,608.94 = 3,155.78 : x
2. Step 2: Convert to fraction form
   5,513.69/7,608.94 = 3,155.78/x
3. Step 3: Cross multiply
   5,513.69x = 7,608.94 × 3,155.78
4. Step 4: Simplify right side
   5,513.69x = 24,012,151.81
5. Step 5: Solve for x
   x = 24,012,151.81/5,513.69
6. Step 6: Final answer
   x = 4,355.00