Finding the Fourth Proportional to 3,964.59, 5,931.77 and 3,595.23

Step by Step Solution

1. Step 1: Write the proportion equation
   3,964.59 : 5,931.77 = 3,595.23 : x
2. Step 2: Convert to fraction form
   3,964.59/5,931.77 = 3,595.23/x
3. Step 3: Cross multiply
   3,964.59x = 5,931.77 × 3,595.23
4. Step 4: Simplify right side
   3,964.59x = 21,326,059.48
5. Step 5: Solve for x
   x = 21,326,059.48/3,964.59
6. Step 6: Final answer
   x = 5,379.13