Finding the Fourth Proportional to 8,453.72, 12,680.72 and 2,610.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,453.72 : 12,680.72 = 2,610.34 : x
2. Step 2: Convert to fraction form
   8,453.72/12,680.72 = 2,610.34/x
3. Step 3: Cross multiply
   8,453.72x = 12,680.72 × 2,610.34
4. Step 4: Simplify right side
   8,453.72x = 33,100,990.64
5. Step 5: Solve for x
   x = 33,100,990.64/8,453.72
6. Step 6: Final answer
   x = 3,915.55