Finding the Fourth Proportional to 8,461.35, 12,631.46 and 7,354.49

Step by Step Solution

1. Step 1: Write the proportion equation
   8,461.35 : 12,631.46 = 7,354.49 : x
2. Step 2: Convert to fraction form
   8,461.35/12,631.46 = 7,354.49/x
3. Step 3: Cross multiply
   8,461.35x = 12,631.46 × 7,354.49
4. Step 4: Simplify right side
   8,461.35x = 92,897,846.33
5. Step 5: Solve for x
   x = 92,897,846.33/8,461.35
6. Step 6: Final answer
   x = 10,979.08