Finding the Fourth Proportional to 9,376.73, 12,949.57 and 8,111.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,376.73 : 12,949.57 = 8,111.71 : x
2. Step 2: Convert to fraction form
   9,376.73/12,949.57 = 8,111.71/x
3. Step 3: Cross multiply
   9,376.73x = 12,949.57 × 8,111.71
4. Step 4: Simplify right side
   9,376.73x = 105,043,156.46
5. Step 5: Solve for x
   x = 105,043,156.46/9,376.73
6. Step 6: Final answer
   x = 11,202.54