Finding the Fourth Proportional to 9,934.92, 13,725.72 and 8,458.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,934.92 : 13,725.72 = 8,458.56 : x
2. Step 2: Convert to fraction form
   9,934.92/13,725.72 = 8,458.56/x
3. Step 3: Cross multiply
   9,934.92x = 13,725.72 × 8,458.56
4. Step 4: Simplify right side
   9,934.92x = 116,099,826.16
5. Step 5: Solve for x
   x = 116,099,826.16/9,934.92
6. Step 6: Final answer
   x = 11,686.04