Finding the Fourth Proportional to 9,926.42, 13,698.62 and 5,450.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,926.42 : 13,698.62 = 5,450.59 : x
2. Step 2: Convert to fraction form
   9,926.42/13,698.62 = 5,450.59/x
3. Step 3: Cross multiply
   9,926.42x = 13,698.62 × 5,450.59
4. Step 4: Simplify right side
   9,926.42x = 74,665,540.57
5. Step 5: Solve for x
   x = 74,665,540.57/9,926.42
6. Step 6: Final answer
   x = 7,521.90