Finding the Fourth Proportional to 9,401.76, 12,974.60 and 5,152.54

Step by Step Solution

1. Step 1: Write the proportion equation
   9,401.76 : 12,974.60 = 5,152.54 : x
2. Step 2: Convert to fraction form
   9,401.76/12,974.60 = 5,152.54/x
3. Step 3: Cross multiply
   9,401.76x = 12,974.60 × 5,152.54
4. Step 4: Simplify right side
   9,401.76x = 66,852,161.70
5. Step 5: Solve for x
   x = 66,852,161.70/9,401.76
6. Step 6: Final answer
   x = 7,110.60