Finding the Fourth Proportional to 9,414.84, 12,992.76 and 5,223

Step by Step Solution

1. Step 1: Write the proportion equation
   9,414.84 : 12,992.76 = 5,223 : x
2. Step 2: Convert to fraction form
   9,414.84/12,992.76 = 5,223/x
3. Step 3: Cross multiply
   9,414.84x = 12,992.76 × 5,223
4. Step 4: Simplify right side
   9,414.84x = 67,861,185.48
5. Step 5: Solve for x
   x = 67,861,185.48/9,414.84
6. Step 6: Final answer
   x = 7,207.90