Finding the Fourth Proportional to 8,276.34, 12,415.32 and 3,012.75

Step by Step Solution

1. Step 1: Write the proportion equation
   8,276.34 : 12,415.32 = 3,012.75 : x
2. Step 2: Convert to fraction form
   8,276.34/12,415.32 = 3,012.75/x
3. Step 3: Cross multiply
   8,276.34x = 12,415.32 × 3,012.75
4. Step 4: Simplify right side
   8,276.34x = 37,404,255.33
5. Step 5: Solve for x
   x = 37,404,255.33/8,276.34
6. Step 6: Final answer
   x = 4,519.42