Finding the Fourth Proportional to 5,513.78, 7,619.04 and 4,019.10

Step by Step Solution

1. Step 1: Write the proportion equation
   5,513.78 : 7,619.04 = 4,019.10 : x
2. Step 2: Convert to fraction form
   5,513.78/7,619.04 = 4,019.10/x
3. Step 3: Cross multiply
   5,513.78x = 7,619.04 × 4,019.10
4. Step 4: Simplify right side
   5,513.78x = 30,621,683.66
5. Step 5: Solve for x
   x = 30,621,683.66/5,513.78
6. Step 6: Final answer
   x = 5,553.66