Finding the Fourth Proportional to 9,735.30, 13,434.71 and 5,259.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,735.30 : 13,434.71 = 5,259.05 : x
2. Step 2: Convert to fraction form
   9,735.30/13,434.71 = 5,259.05/x
3. Step 3: Cross multiply
   9,735.30x = 13,434.71 × 5,259.05
4. Step 4: Simplify right side
   9,735.30x = 70,653,858.36
5. Step 5: Solve for x
   x = 70,653,858.36/9,735.30
6. Step 6: Final answer
   x = 7,257.49