Finding the Fourth Proportional to 9,926.55, 13,698.80 and 5,450.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,926.55 : 13,698.80 = 5,450.49 : x
2. Step 2: Convert to fraction form
   9,926.55/13,698.80 = 5,450.49/x
3. Step 3: Cross multiply
   9,926.55x = 13,698.80 × 5,450.49
4. Step 4: Simplify right side
   9,926.55x = 74,665,103.92
5. Step 5: Solve for x
   x = 74,665,103.92/9,926.55
6. Step 6: Final answer
   x = 7,521.76