Finding the Fourth Proportional to 23,686, 32,686.04 and 13,075.40

Step by Step Solution

1. Step 1: Write the proportion equation
   23,686 : 32,686.04 = 13,075.40 : x
2. Step 2: Convert to fraction form
   23,686/32,686.04 = 13,075.40/x
3. Step 3: Cross multiply
   23,686x = 32,686.04 × 13,075.40
4. Step 4: Simplify right side
   23,686x = 427,383,047.42
5. Step 5: Solve for x
   x = 427,383,047.42/23,686
6. Step 6: Final answer
   x = 18,043.70