Finding the Fourth Proportional to 11,836.50, 17,737.83 and 8,691.83

Step by Step Solution

1. Step 1: Write the proportion equation
   11,836.50 : 17,737.83 = 8,691.83 : x
2. Step 2: Convert to fraction form
   11,836.50/17,737.83 = 8,691.83/x
3. Step 3: Cross multiply
   11,836.50x = 17,737.83 × 8,691.83
4. Step 4: Simplify right side
   11,836.50x = 154,174,206.20
5. Step 5: Solve for x
   x = 154,174,206.20/11,836.50
6. Step 6: Final answer
   x = 13,025.32