Finding the Fourth Proportional to 9,417.94, 12,910.33 and 9,330.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,417.94 : 12,910.33 = 9,330.82 : x
2. Step 2: Convert to fraction form
   9,417.94/12,910.33 = 9,330.82/x
3. Step 3: Cross multiply
   9,417.94x = 12,910.33 × 9,330.82
4. Step 4: Simplify right side
   9,417.94x = 120,463,965.37
5. Step 5: Solve for x
   x = 120,463,965.37/9,417.94
6. Step 6: Final answer
   x = 12,790.90