Finding the Fourth Proportional to 9,736.68, 13,436.61 and 5,260.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,736.68 : 13,436.61 = 5,260.42 : x
2. Step 2: Convert to fraction form
   9,736.68/13,436.61 = 5,260.42/x
3. Step 3: Cross multiply
   9,736.68x = 13,436.61 × 5,260.42
4. Step 4: Simplify right side
   9,736.68x = 70,682,186.05
5. Step 5: Solve for x
   x = 70,682,186.05/9,736.68
6. Step 6: Final answer
   x = 7,259.37