Finding the Fourth Proportional to 9,434.28, 13,019.45 and 5,401.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,434.28 : 13,019.45 = 5,401.09 : x
2. Step 2: Convert to fraction form
   9,434.28/13,019.45 = 5,401.09/x
3. Step 3: Cross multiply
   9,434.28x = 13,019.45 × 5,401.09
4. Step 4: Simplify right side
   9,434.28x = 70,319,202.15
5. Step 5: Solve for x
   x = 70,319,202.15/9,434.28
6. Step 6: Final answer
   x = 7,453.59