Finding the Fourth Proportional to 9,483.40, 13,086.88 and 5,450.23

Step by Step Solution

1. Step 1: Write the proportion equation
   9,483.40 : 13,086.88 = 5,450.23 : x
2. Step 2: Convert to fraction form
   9,483.40/13,086.88 = 5,450.23/x
3. Step 3: Cross multiply
   9,483.40x = 13,086.88 × 5,450.23
4. Step 4: Simplify right side
   9,483.40x = 71,326,505.98
5. Step 5: Solve for x
   x = 71,326,505.98/9,483.40
6. Step 6: Final answer
   x = 7,521.20