Finding the Fourth Proportional to 5,615.46, 8,427.78 and 3,973.59

Step by Step Solution

1. Step 1: Write the proportion equation
   5,615.46 : 8,427.78 = 3,973.59 : x
2. Step 2: Convert to fraction form
   5,615.46/8,427.78 = 3,973.59/x
3. Step 3: Cross multiply
   5,615.46x = 8,427.78 × 3,973.59
4. Step 4: Simplify right side
   5,615.46x = 33,488,542.33
5. Step 5: Solve for x
   x = 33,488,542.33/5,615.46
6. Step 6: Final answer
   x = 5,963.63