Finding the Fourth Proportional to 9,671.97, 13,348.43 and 5,424.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,671.97 : 13,348.43 = 5,424.18 : x
2. Step 2: Convert to fraction form
   9,671.97/13,348.43 = 5,424.18/x
3. Step 3: Cross multiply
   9,671.97x = 13,348.43 × 5,424.18
4. Step 4: Simplify right side
   9,671.97x = 72,404,259.92
5. Step 5: Solve for x
   x = 72,404,259.92/9,671.97
6. Step 6: Final answer
   x = 7,485.99