Finding the Fourth Proportional to 9,401.68, 12,974.61 and 5,422.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,401.68 : 12,974.61 = 5,422.96 : x
2. Step 2: Convert to fraction form
   9,401.68/12,974.61 = 5,422.96/x
3. Step 3: Cross multiply
   9,401.68x = 12,974.61 × 5,422.96
4. Step 4: Simplify right side
   9,401.68x = 70,360,791.05
5. Step 5: Solve for x
   x = 70,360,791.05/9,401.68
6. Step 6: Final answer
   x = 7,483.85