Finding the Fourth Proportional to 11,146.82, 15,371.57 and 10,223.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,146.82 : 15,371.57 = 10,223.72 : x
2. Step 2: Convert to fraction form
   11,146.82/15,371.57 = 10,223.72/x
3. Step 3: Cross multiply
   11,146.82x = 15,371.57 × 10,223.72
4. Step 4: Simplify right side
   11,146.82x = 157,154,633.99
5. Step 5: Solve for x
   x = 157,154,633.99/11,146.82
6. Step 6: Final answer
   x = 14,098.61