Finding the Fourth Proportional to 12,276, 16,940.27 and 7,490.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,276 : 16,940.27 = 7,490.42 : x
2. Step 2: Convert to fraction form
   12,276/16,940.27 = 7,490.42/x
3. Step 3: Cross multiply
   12,276x = 16,940.27 × 7,490.42
4. Step 4: Simplify right side
   12,276x = 126,889,798.29
5. Step 5: Solve for x
   x = 126,889,798.29/12,276
6. Step 6: Final answer
   x = 10,336.41