Finding the Fourth Proportional to 3,987.71, 5,504.52 and 3,425.93

Step by Step Solution

1. Step 1: Write the proportion equation
   3,987.71 : 5,504.52 = 3,425.93 : x
2. Step 2: Convert to fraction form
   3,987.71/5,504.52 = 3,425.93/x
3. Step 3: Cross multiply
   3,987.71x = 5,504.52 × 3,425.93
4. Step 4: Simplify right side
   3,987.71x = 18,858,100.20
5. Step 5: Solve for x
   x = 18,858,100.20/3,987.71
6. Step 6: Final answer
   x = 4,729.06