Finding the Fourth Proportional to 9,139.60, 12,609.57 and 5,951.44

Step by Step Solution

1. Step 1: Write the proportion equation
   9,139.60 : 12,609.57 = 5,951.44 : x
2. Step 2: Convert to fraction form
   9,139.60/12,609.57 = 5,951.44/x
3. Step 3: Cross multiply
   9,139.60x = 12,609.57 × 5,951.44
4. Step 4: Simplify right side
   9,139.60x = 75,045,099.28
5. Step 5: Solve for x
   x = 75,045,099.28/9,139.60
6. Step 6: Final answer
   x = 8,210.98