Finding the Fourth Proportional to 9,429.12, 13,010.73 and 5,449.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,429.12 : 13,010.73 = 5,449.46 : x
2. Step 2: Convert to fraction form
   9,429.12/13,010.73 = 5,449.46/x
3. Step 3: Cross multiply
   9,429.12x = 13,010.73 × 5,449.46
4. Step 4: Simplify right side
   9,429.12x = 70,901,452.71
5. Step 5: Solve for x
   x = 70,901,452.71/9,429.12
6. Step 6: Final answer
   x = 7,519.41