Finding the Fourth Proportional to 9,727.84, 13,425.69 and 5,479.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,727.84 : 13,425.69 = 5,479.72 : x
2. Step 2: Convert to fraction form
   9,727.84/13,425.69 = 5,479.72/x
3. Step 3: Cross multiply
   9,727.84x = 13,425.69 × 5,479.72
4. Step 4: Simplify right side
   9,727.84x = 73,569,022.01
5. Step 5: Solve for x
   x = 73,569,022.01/9,727.84
6. Step 6: Final answer
   x = 7,562.73