Finding the Fourth Proportional to 9,699.06, 13,383.59 and 5,449.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,699.06 : 13,383.59 = 5,449.55 : x
2. Step 2: Convert to fraction form
   9,699.06/13,383.59 = 5,449.55/x
3. Step 3: Cross multiply
   9,699.06x = 13,383.59 × 5,449.55
4. Step 4: Simplify right side
   9,699.06x = 72,934,448.72
5. Step 5: Solve for x
   x = 72,934,448.72/9,699.06
6. Step 6: Final answer
   x = 7,519.74