Finding the Fourth Proportional to 5,111.10, 7,050.43 and 3,219.43

Step by Step Solution

1. Step 1: Write the proportion equation
   5,111.10 : 7,050.43 = 3,219.43 : x
2. Step 2: Convert to fraction form
   5,111.10/7,050.43 = 3,219.43/x
3. Step 3: Cross multiply
   5,111.10x = 7,050.43 × 3,219.43
4. Step 4: Simplify right side
   5,111.10x = 22,698,365.85
5. Step 5: Solve for x
   x = 22,698,365.85/5,111.10
6. Step 6: Final answer
   x = 4,440.99