Finding the Fourth Proportional to 9,735.05, 13,431.93 and 5,485.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,735.05 : 13,431.93 = 5,485.25 : x
2. Step 2: Convert to fraction form
   9,735.05/13,431.93 = 5,485.25/x
3. Step 3: Cross multiply
   9,735.05x = 13,431.93 × 5,485.25
4. Step 4: Simplify right side
   9,735.05x = 73,677,494.03
5. Step 5: Solve for x
   x = 73,677,494.03/9,735.05
6. Step 6: Final answer
   x = 7,568.27