Finding the Fourth Proportional to 9,351.27, 12,894.71 and 9,213.39

Step by Step Solution

1. Step 1: Write the proportion equation
   9,351.27 : 12,894.71 = 9,213.39 : x
2. Step 2: Convert to fraction form
   9,351.27/12,894.71 = 9,213.39/x
3. Step 3: Cross multiply
   9,351.27x = 12,894.71 × 9,213.39
4. Step 4: Simplify right side
   9,351.27x = 118,803,946.10
5. Step 5: Solve for x
   x = 118,803,946.10/9,351.27
6. Step 6: Final answer
   x = 12,704.58