Finding the Fourth Proportional to 9,401.76, 12,944.76 and 7,156.44

Step by Step Solution

1. Step 1: Write the proportion equation
   9,401.76 : 12,944.76 = 7,156.44 : x
2. Step 2: Convert to fraction form
   9,401.76/12,944.76 = 7,156.44/x
3. Step 3: Cross multiply
   9,401.76x = 12,944.76 × 7,156.44
4. Step 4: Simplify right side
   9,401.76x = 92,638,398.25
5. Step 5: Solve for x
   x = 92,638,398.25/9,401.76
6. Step 6: Final answer
   x = 9,853.30