Finding the Fourth Proportional to 10,360.78, 14,198.24 and 9,364.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,360.78 : 14,198.24 = 9,364.30 : x
2. Step 2: Convert to fraction form
   10,360.78/14,198.24 = 9,364.30/x
3. Step 3: Cross multiply
   10,360.78x = 14,198.24 × 9,364.30
4. Step 4: Simplify right side
   10,360.78x = 132,956,578.83
5. Step 5: Solve for x
   x = 132,956,578.83/10,360.78
6. Step 6: Final answer
   x = 12,832.68