Finding the Fourth Proportional to 3,953.31, 5,915.37 and 3,253.47

Step by Step Solution

1. Step 1: Write the proportion equation
   3,953.31 : 5,915.37 = 3,253.47 : x
2. Step 2: Convert to fraction form
   3,953.31/5,915.37 = 3,253.47/x
3. Step 3: Cross multiply
   3,953.31x = 5,915.37 × 3,253.47
4. Step 4: Simplify right side
   3,953.31x = 19,245,478.83
5. Step 5: Solve for x
   x = 19,245,478.83/3,953.31
6. Step 6: Final answer
   x = 4,868.19