Finding the Fourth Proportional to 16,591.82, 22,896.70 and 9,139.82

Step by Step Solution

1. Step 1: Write the proportion equation
   16,591.82 : 22,896.70 = 9,139.82 : x
2. Step 2: Convert to fraction form
   16,591.82/22,896.70 = 9,139.82/x
3. Step 3: Cross multiply
   16,591.82x = 22,896.70 × 9,139.82
4. Step 4: Simplify right side
   16,591.82x = 209,271,716.59
5. Step 5: Solve for x
   x = 209,271,716.59/16,591.82
6. Step 6: Final answer
   x = 12,612.95