Finding the Fourth Proportional to 9,765.82, 13,476.83 and 5,289.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,765.82 : 13,476.83 = 5,289.60 : x
2. Step 2: Convert to fraction form
   9,765.82/13,476.83 = 5,289.60/x
3. Step 3: Cross multiply
   9,765.82x = 13,476.83 × 5,289.60
4. Step 4: Simplify right side
   9,765.82x = 71,286,980.10
5. Step 5: Solve for x
   x = 71,286,980.10/9,765.82
6. Step 6: Final answer
   x = 7,299.64