Finding the Fourth Proportional to 5,139.35, 7,709.52 and 1,441.57

Step by Step Solution

1. Step 1: Write the proportion equation
   5,139.35 : 7,709.52 = 1,441.57 : x
2. Step 2: Convert to fraction form
   5,139.35/7,709.52 = 1,441.57/x
3. Step 3: Cross multiply
   5,139.35x = 7,709.52 × 1,441.57
4. Step 4: Simplify right side
   5,139.35x = 11,113,786.72
5. Step 5: Solve for x
   x = 11,113,786.72/5,139.35
6. Step 6: Final answer
   x = 2,162.49