Finding the Fourth Proportional to 8,915.40, 12,303.06 and 4,936.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,915.40 : 12,303.06 = 4,936.50 : x
2. Step 2: Convert to fraction form
   8,915.40/12,303.06 = 4,936.50/x
3. Step 3: Cross multiply
   8,915.40x = 12,303.06 × 4,936.50
4. Step 4: Simplify right side
   8,915.40x = 60,734,055.69
5. Step 5: Solve for x
   x = 60,734,055.69/8,915.40
6. Step 6: Final answer
   x = 6,812.26