Finding the Fourth Proportional to 5,139.42, 7,087.32 and 4,141.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,139.42 : 7,087.32 = 4,141.50 : x
2. Step 2: Convert to fraction form
   5,139.42/7,087.32 = 4,141.50/x
3. Step 3: Cross multiply
   5,139.42x = 7,087.32 × 4,141.50
4. Step 4: Simplify right side
   5,139.42x = 29,352,135.78
5. Step 5: Solve for x
   x = 29,352,135.78/5,139.42
6. Step 6: Final answer
   x = 5,711.18