Finding the Fourth Proportional to 8,601.69, 11,873.69 and 8,364.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,601.69 : 11,873.69 = 8,364.72 : x
2. Step 2: Convert to fraction form
   8,601.69/11,873.69 = 8,364.72/x
3. Step 3: Cross multiply
   8,601.69x = 11,873.69 × 8,364.72
4. Step 4: Simplify right side
   8,601.69x = 99,320,059.50
5. Step 5: Solve for x
   x = 99,320,059.50/8,601.69
6. Step 6: Final answer
   x = 11,546.57