Finding the Fourth Proportional to 8,462.75, 12,693.31 and 2,915.33

Step by Step Solution

1. Step 1: Write the proportion equation
   8,462.75 : 12,693.31 = 2,915.33 : x
2. Step 2: Convert to fraction form
   8,462.75/12,693.31 = 2,915.33/x
3. Step 3: Cross multiply
   8,462.75x = 12,693.31 × 2,915.33
4. Step 4: Simplify right side
   8,462.75x = 37,005,116.69
5. Step 5: Solve for x
   x = 37,005,116.69/8,462.75
6. Step 6: Final answer
   x = 4,372.71