Finding the Fourth Proportional to 13,076.72, 18,046.32 and 7,411.40

Step by Step Solution

1. Step 1: Write the proportion equation
   13,076.72 : 18,046.32 = 7,411.40 : x
2. Step 2: Convert to fraction form
   13,076.72/18,046.32 = 7,411.40/x
3. Step 3: Cross multiply
   13,076.72x = 18,046.32 × 7,411.40
4. Step 4: Simplify right side
   13,076.72x = 133,748,496.05
5. Step 5: Solve for x
   x = 133,748,496.05/13,076.72
6. Step 6: Final answer
   x = 10,227.99