Finding the Fourth Proportional to 8,900.40, 12,284.04 and 5,364.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,900.40 : 12,284.04 = 5,364.16 : x
2. Step 2: Convert to fraction form
   8,900.40/12,284.04 = 5,364.16/x
3. Step 3: Cross multiply
   8,900.40x = 12,284.04 × 5,364.16
4. Step 4: Simplify right side
   8,900.40x = 65,893,556.01
5. Step 5: Solve for x
   x = 65,893,556.01/8,900.40
6. Step 6: Final answer
   x = 7,403.44