Finding the Fourth Proportional to 12,128.06, 16,738.76 and 7,022.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,128.06 : 16,738.76 = 7,022.83 : x
2. Step 2: Convert to fraction form
   12,128.06/16,738.76 = 7,022.83/x
3. Step 3: Cross multiply
   12,128.06x = 16,738.76 × 7,022.83
4. Step 4: Simplify right side
   12,128.06x = 117,553,347.08
5. Step 5: Solve for x
   x = 117,553,347.08/12,128.06
6. Step 6: Final answer
   x = 9,692.68