Finding the Fourth Proportional to 17,105.56, 23,550.78 and 14,896.60

Step by Step Solution

1. Step 1: Write the proportion equation
   17,105.56 : 23,550.78 = 14,896.60 : x
2. Step 2: Convert to fraction form
   17,105.56/23,550.78 = 14,896.60/x
3. Step 3: Cross multiply
   17,105.56x = 23,550.78 × 14,896.60
4. Step 4: Simplify right side
   17,105.56x = 350,826,549.35
5. Step 5: Solve for x
   x = 350,826,549.35/17,105.56
6. Step 6: Final answer
   x = 20,509.50