Finding the Fourth Proportional to 9,434.88, 13,019.58 and 5,455.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,434.88 : 13,019.58 = 5,455.71 : x
2. Step 2: Convert to fraction form
   9,434.88/13,019.58 = 5,455.71/x
3. Step 3: Cross multiply
   9,434.88x = 13,019.58 × 5,455.71
4. Step 4: Simplify right side
   9,434.88x = 71,031,052.80
5. Step 5: Solve for x
   x = 71,031,052.80/9,434.88
6. Step 6: Final answer
   x = 7,528.56