Finding the Fourth Proportional to 9,209.15, 12,710.17 and 5,433.26

Step by Step Solution

1. Step 1: Write the proportion equation
   9,209.15 : 12,710.17 = 5,433.26 : x
2. Step 2: Convert to fraction form
   9,209.15/12,710.17 = 5,433.26/x
3. Step 3: Cross multiply
   9,209.15x = 12,710.17 × 5,433.26
4. Step 4: Simplify right side
   9,209.15x = 69,057,594.70
5. Step 5: Solve for x
   x = 69,057,594.70/9,209.15
6. Step 6: Final answer
   x = 7,498.80