Finding the Fourth Proportional to 9,270.79, 12,795.69 and 5,912.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,270.79 : 12,795.69 = 5,912.86 : x
2. Step 2: Convert to fraction form
   9,270.79/12,795.69 = 5,912.86/x
3. Step 3: Cross multiply
   9,270.79x = 12,795.69 × 5,912.86
4. Step 4: Simplify right side
   9,270.79x = 75,659,123.57
5. Step 5: Solve for x
   x = 75,659,123.57/9,270.79
6. Step 6: Final answer
   x = 8,161.02