Finding the Fourth Proportional to 9,641.52, 13,305.52 and 5,449.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,641.52 : 13,305.52 = 5,449.76 : x
2. Step 2: Convert to fraction form
   9,641.52/13,305.52 = 5,449.76/x
3. Step 3: Cross multiply
   9,641.52x = 13,305.52 × 5,449.76
4. Step 4: Simplify right side
   9,641.52x = 72,511,890.68
5. Step 5: Solve for x
   x = 72,511,890.68/9,641.52
6. Step 6: Final answer
   x = 7,520.79