Finding the Fourth Proportional to 6,865.41, 9,474.29 and 3,721.59

Step by Step Solution

1. Step 1: Write the proportion equation
   6,865.41 : 9,474.29 = 3,721.59 : x
2. Step 2: Convert to fraction form
   6,865.41/9,474.29 = 3,721.59/x
3. Step 3: Cross multiply
   6,865.41x = 9,474.29 × 3,721.59
4. Step 4: Simplify right side
   6,865.41x = 35,259,404.31
5. Step 5: Solve for x
   x = 35,259,404.31/6,865.41
6. Step 6: Final answer
   x = 5,135.80