Finding the Fourth Proportional to 11,903.50, 16,404.18 and 8,717.77

Step by Step Solution

1. Step 1: Write the proportion equation
   11,903.50 : 16,404.18 = 8,717.77 : x
2. Step 2: Convert to fraction form
   11,903.50/16,404.18 = 8,717.77/x
3. Step 3: Cross multiply
   11,903.50x = 16,404.18 × 8,717.77
4. Step 4: Simplify right side
   11,903.50x = 143,007,868.28
5. Step 5: Solve for x
   x = 143,007,868.28/11,903.50
6. Step 6: Final answer
   x = 12,013.93