Finding the Fourth Proportional to 22,339.09, 30,826.86 and 12,910.69

Step by Step Solution

1. Step 1: Write the proportion equation
   22,339.09 : 30,826.86 = 12,910.69 : x
2. Step 2: Convert to fraction form
   22,339.09/30,826.86 = 12,910.69/x
3. Step 3: Cross multiply
   22,339.09x = 30,826.86 × 12,910.69
4. Step 4: Simplify right side
   22,339.09x = 397,996,033.13
5. Step 5: Solve for x
   x = 397,996,033.13/22,339.09
6. Step 6: Final answer
   x = 17,816.13