Finding the Fourth Proportional to 13,243.76, 18,276.72 and 7,276

Step by Step Solution

1. Step 1: Write the proportion equation
   13,243.76 : 18,276.72 = 7,276 : x
2. Step 2: Convert to fraction form
   13,243.76/18,276.72 = 7,276/x
3. Step 3: Cross multiply
   13,243.76x = 18,276.72 × 7,276
4. Step 4: Simplify right side
   13,243.76x = 132,981,414.72
5. Step 5: Solve for x
   x = 132,981,414.72/13,243.76
6. Step 6: Final answer
   x = 10,041.06