Finding the Fourth Proportional to 8,259.49, 12,358.18 and 4,915.43

Step by Step Solution

1. Step 1: Write the proportion equation
   8,259.49 : 12,358.18 = 4,915.43 : x
2. Step 2: Convert to fraction form
   8,259.49/12,358.18 = 4,915.43/x
3. Step 3: Cross multiply
   8,259.49x = 12,358.18 × 4,915.43
4. Step 4: Simplify right side
   8,259.49x = 60,745,768.72
5. Step 5: Solve for x
   x = 60,745,768.72/8,259.49
6. Step 6: Final answer
   x = 7,354.66