Finding the Fourth Proportional to 9,699.30, 13,383.93 and 5,449.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,699.30 : 13,383.93 = 5,449.50 : x
2. Step 2: Convert to fraction form
   9,699.30/13,383.93 = 5,449.50/x
3. Step 3: Cross multiply
   9,699.30x = 13,383.93 × 5,449.50
4. Step 4: Simplify right side
   9,699.30x = 72,935,726.54
5. Step 5: Solve for x
   x = 72,935,726.54/9,699.30
6. Step 6: Final answer
   x = 7,519.69