Finding the Fourth Proportional to 9,698.67, 13,383.74 and 5,391.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,698.67 : 13,383.74 = 5,391.59 : x
2. Step 2: Convert to fraction form
   9,698.67/13,383.74 = 5,391.59/x
3. Step 3: Cross multiply
   9,698.67x = 13,383.74 × 5,391.59
4. Step 4: Simplify right side
   9,698.67x = 72,159,585.31
5. Step 5: Solve for x
   x = 72,159,585.31/9,698.67
6. Step 6: Final answer
   x = 7,440.15