Finding the Fourth Proportional to 9,434.52, 13,019.76 and 5,455.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,434.52 : 13,019.76 = 5,455.80 : x
2. Step 2: Convert to fraction form
   9,434.52/13,019.76 = 5,455.80/x
3. Step 3: Cross multiply
   9,434.52x = 13,019.76 × 5,455.80
4. Step 4: Simplify right side
   9,434.52x = 71,033,206.61
5. Step 5: Solve for x
   x = 71,033,206.61/9,434.52
6. Step 6: Final answer
   x = 7,529.07