Finding the Fourth Proportional to 20,844.24, 28,767.83 and 12,345.69

Step by Step Solution

1. Step 1: Write the proportion equation
   20,844.24 : 28,767.83 = 12,345.69 : x
2. Step 2: Convert to fraction form
   20,844.24/28,767.83 = 12,345.69/x
3. Step 3: Cross multiply
   20,844.24x = 28,767.83 × 12,345.69
4. Step 4: Simplify right side
   20,844.24x = 355,158,711.15
5. Step 5: Solve for x
   x = 355,158,711.15/20,844.24
6. Step 6: Final answer
   x = 17,038.70