Finding the Fourth Proportional to 10,961.73, 16,432.17 and 3,561

Step by Step Solution

1. Step 1: Write the proportion equation
   10,961.73 : 16,432.17 = 3,561 : x
2. Step 2: Convert to fraction form
   10,961.73/16,432.17 = 3,561/x
3. Step 3: Cross multiply
   10,961.73x = 16,432.17 × 3,561
4. Step 4: Simplify right side
   10,961.73x = 58,514,957.37
5. Step 5: Solve for x
   x = 58,514,957.37/10,961.73
6. Step 6: Final answer
   x = 5,338.11