Finding the Fourth Proportional to 9,423.50, 13,007.92 and 8,091.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,423.50 : 13,007.92 = 8,091.86 : x
2. Step 2: Convert to fraction form
   9,423.50/13,007.92 = 8,091.86/x
3. Step 3: Cross multiply
   9,423.50x = 13,007.92 × 8,091.86
4. Step 4: Simplify right side
   9,423.50x = 105,258,267.53
5. Step 5: Solve for x
   x = 105,258,267.53/9,423.50
6. Step 6: Final answer
   x = 11,169.76