Finding the Fourth Proportional to 9,284.34, 12,812.22 and 5,251.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,284.34 : 12,812.22 = 5,251.12 : x
2. Step 2: Convert to fraction form
   9,284.34/12,812.22 = 5,251.12/x
3. Step 3: Cross multiply
   9,284.34x = 12,812.22 × 5,251.12
4. Step 4: Simplify right side
   9,284.34x = 67,278,504.69
5. Step 5: Solve for x
   x = 67,278,504.69/9,284.34
6. Step 6: Final answer
   x = 7,246.45