Finding the Fourth Proportional to 9,401.13, 12,974.37 and 5,423.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,401.13 : 12,974.37 = 5,423.56 : x
2. Step 2: Convert to fraction form
   9,401.13/12,974.37 = 5,423.56/x
3. Step 3: Cross multiply
   9,401.13x = 12,974.37 × 5,423.56
4. Step 4: Simplify right side
   9,401.13x = 70,367,274.16
5. Step 5: Solve for x
   x = 70,367,274.16/9,401.13
6. Step 6: Final answer
   x = 7,484.98