Finding the Fourth Proportional to 8,307.10, 12,460.38 and 3,375.28

Step by Step Solution

1. Step 1: Write the proportion equation
   8,307.10 : 12,460.38 = 3,375.28 : x
2. Step 2: Convert to fraction form
   8,307.10/12,460.38 = 3,375.28/x
3. Step 3: Cross multiply
   8,307.10x = 12,460.38 × 3,375.28
4. Step 4: Simplify right side
   8,307.10x = 42,057,271.41
5. Step 5: Solve for x
   x = 42,057,271.41/8,307.10
6. Step 6: Final answer
   x = 5,062.81