Finding the Fourth Proportional to 11,826.05, 17,737.79 and 3,928.14

Step by Step Solution

1. Step 1: Write the proportion equation
   11,826.05 : 17,737.79 = 3,928.14 : x
2. Step 2: Convert to fraction form
   11,826.05/17,737.79 = 3,928.14/x
3. Step 3: Cross multiply
   11,826.05x = 17,737.79 × 3,928.14
4. Step 4: Simplify right side
   11,826.05x = 69,676,502.77
5. Step 5: Solve for x
   x = 69,676,502.77/11,826.05
6. Step 6: Final answer
   x = 5,891.78