Finding the Fourth Proportional to 13,441.29, 18,546.89 and 7,472.94

Step by Step Solution

1. Step 1: Write the proportion equation
   13,441.29 : 18,546.89 = 7,472.94 : x
2. Step 2: Convert to fraction form
   13,441.29/18,546.89 = 7,472.94/x
3. Step 3: Cross multiply
   13,441.29x = 18,546.89 × 7,472.94
4. Step 4: Simplify right side
   13,441.29x = 138,599,758.79
5. Step 5: Solve for x
   x = 138,599,758.79/13,441.29
6. Step 6: Final answer
   x = 10,311.49