Finding the Fourth Proportional to 9,269.79, 12,794.31 and 5,911.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,269.79 : 12,794.31 = 5,911.86 : x
2. Step 2: Convert to fraction form
   9,269.79/12,794.31 = 5,911.86/x
3. Step 3: Cross multiply
   9,269.79x = 12,794.31 × 5,911.86
4. Step 4: Simplify right side
   9,269.79x = 75,638,169.52
5. Step 5: Solve for x
   x = 75,638,169.52/9,269.79
6. Step 6: Final answer
   x = 8,159.64