Finding the Fourth Proportional to 12,310.76, 16,969.02 and 8,330.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,310.76 : 16,969.02 = 8,330.42 : x
2. Step 2: Convert to fraction form
   12,310.76/16,969.02 = 8,330.42/x
3. Step 3: Cross multiply
   12,310.76x = 16,969.02 × 8,330.42
4. Step 4: Simplify right side
   12,310.76x = 141,359,063.59
5. Step 5: Solve for x
   x = 141,359,063.59/12,310.76
6. Step 6: Final answer
   x = 11,482.56