Finding the Fourth Proportional to 9,465.70, 13,062.20 and 5,488.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,465.70 : 13,062.20 = 5,488.10 : x
2. Step 2: Convert to fraction form
   9,465.70/13,062.20 = 5,488.10/x
3. Step 3: Cross multiply
   9,465.70x = 13,062.20 × 5,488.10
4. Step 4: Simplify right side
   9,465.70x = 71,686,665.03
5. Step 5: Solve for x
   x = 71,686,665.03/9,465.70
6. Step 6: Final answer
   x = 7,573.31