Finding the Fourth Proportional to 9,926.09, 13,698.81 and 5,450.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,926.09 : 13,698.81 = 5,450.72 : x
2. Step 2: Convert to fraction form
   9,926.09/13,698.81 = 5,450.72/x
3. Step 3: Cross multiply
   9,926.09x = 13,698.81 × 5,450.72
4. Step 4: Simplify right side
   9,926.09x = 74,668,377.64
5. Step 5: Solve for x
   x = 74,668,377.64/9,926.09
6. Step 6: Final answer
   x = 7,522.44