Finding the Fourth Proportional to 9,805.14, 13,530.69 and 5,612.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,805.14 : 13,530.69 = 5,612.82 : x
2. Step 2: Convert to fraction form
   9,805.14/13,530.69 = 5,612.82/x
3. Step 3: Cross multiply
   9,805.14x = 13,530.69 × 5,612.82
4. Step 4: Simplify right side
   9,805.14x = 75,945,327.45
5. Step 5: Solve for x
   x = 75,945,327.45/9,805.14
6. Step 6: Final answer
   x = 7,745.46