Finding the Fourth Proportional to 11,128.50, 16,692.27 and 3,231

Step by Step Solution

1. Step 1: Write the proportion equation
   11,128.50 : 16,692.27 = 3,231 : x
2. Step 2: Convert to fraction form
   11,128.50/16,692.27 = 3,231/x
3. Step 3: Cross multiply
   11,128.50x = 16,692.27 × 3,231
4. Step 4: Simplify right side
   11,128.50x = 53,932,724.37
5. Step 5: Solve for x
   x = 53,932,724.37/11,128.50
6. Step 6: Final answer
   x = 4,846.36