Finding the Fourth Proportional to 9,157.46, 12,636.42 and 7,273.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,157.46 : 12,636.42 = 7,273.61 : x
2. Step 2: Convert to fraction form
   9,157.46/12,636.42 = 7,273.61/x
3. Step 3: Cross multiply
   9,157.46x = 12,636.42 × 7,273.61
4. Step 4: Simplify right side
   9,157.46x = 91,912,327.69
5. Step 5: Solve for x
   x = 91,912,327.69/9,157.46
6. Step 6: Final answer
   x = 10,036.88