Finding the Fourth Proportional to 9,698.64, 13,383.72 and 5,507.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,698.64 : 13,383.72 = 5,507.28 : x
2. Step 2: Convert to fraction form
   9,698.64/13,383.72 = 5,507.28/x
3. Step 3: Cross multiply
   9,698.64x = 13,383.72 × 5,507.28
4. Step 4: Simplify right side
   9,698.64x = 73,707,893.48
5. Step 5: Solve for x
   x = 73,707,893.48/9,698.64
6. Step 6: Final answer
   x = 7,599.82