Finding the Fourth Proportional to 5,826.39, 8,042.18 and 3,964.47

Step by Step Solution

1. Step 1: Write the proportion equation
   5,826.39 : 8,042.18 = 3,964.47 : x
2. Step 2: Convert to fraction form
   5,826.39/8,042.18 = 3,964.47/x
3. Step 3: Cross multiply
   5,826.39x = 8,042.18 × 3,964.47
4. Step 4: Simplify right side
   5,826.39x = 31,882,961.52
5. Step 5: Solve for x
   x = 31,882,961.52/5,826.39
6. Step 6: Final answer
   x = 5,472.16