Finding the Fourth Proportional to 9,356.92, 12,912.22 and 5,630.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,356.92 : 12,912.22 = 5,630.20 : x
2. Step 2: Convert to fraction form
   9,356.92/12,912.22 = 5,630.20/x
3. Step 3: Cross multiply
   9,356.92x = 12,912.22 × 5,630.20
4. Step 4: Simplify right side
   9,356.92x = 72,698,381.04
5. Step 5: Solve for x
   x = 72,698,381.04/9,356.92
6. Step 6: Final answer
   x = 7,769.48