Finding the Fourth Proportional to 8,987.22, 12,403.46 and 5,450.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,987.22 : 12,403.46 = 5,450.42 : x
2. Step 2: Convert to fraction form
   8,987.22/12,403.46 = 5,450.42/x
3. Step 3: Cross multiply
   8,987.22x = 12,403.46 × 5,450.42
4. Step 4: Simplify right side
   8,987.22x = 67,604,066.45
5. Step 5: Solve for x
   x = 67,604,066.45/8,987.22
6. Step 6: Final answer
   x = 7,522.24