Finding the Fourth Proportional to 9,326.28, 12,861.78 and 7,196.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,326.28 : 12,861.78 = 7,196.49 : x
2. Step 2: Convert to fraction form
   9,326.28/12,861.78 = 7,196.49/x
3. Step 3: Cross multiply
   9,326.28x = 12,861.78 × 7,196.49
4. Step 4: Simplify right side
   9,326.28x = 92,559,671.15
5. Step 5: Solve for x
   x = 92,559,671.15/9,326.28
6. Step 6: Final answer
   x = 9,924.61