Finding the Fourth Proportional to 9,401.73, 12,944.79 and 7,156.41

Step by Step Solution

1. Step 1: Write the proportion equation
   9,401.73 : 12,944.79 = 7,156.41 : x
2. Step 2: Convert to fraction form
   9,401.73/12,944.79 = 7,156.41/x
3. Step 3: Cross multiply
   9,401.73x = 12,944.79 × 7,156.41
4. Step 4: Simplify right side
   9,401.73x = 92,638,224.60
5. Step 5: Solve for x
   x = 92,638,224.60/9,401.73
6. Step 6: Final answer
   x = 9,853.32