Finding the Fourth Proportional to 9,399.52, 12,938.61 and 8,276.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,399.52 : 12,938.61 = 8,276.86 : x
2. Step 2: Convert to fraction form
   9,399.52/12,938.61 = 8,276.86/x
3. Step 3: Cross multiply
   9,399.52x = 12,938.61 × 8,276.86
4. Step 4: Simplify right side
   9,399.52x = 107,091,063.56
5. Step 5: Solve for x
   x = 107,091,063.56/9,399.52
6. Step 6: Final answer
   x = 11,393.25