Finding the Fourth Proportional to 15,836.72, 23,651.72 and 13,471.52

Step by Step Solution

1. Step 1: Write the proportion equation
   15,836.72 : 23,651.72 = 13,471.52 : x
2. Step 2: Convert to fraction form
   15,836.72/23,651.72 = 13,471.52/x
3. Step 3: Cross multiply
   15,836.72x = 23,651.72 × 13,471.52
4. Step 4: Simplify right side
   15,836.72x = 318,624,619.01
5. Step 5: Solve for x
   x = 318,624,619.01/15,836.72
6. Step 6: Final answer
   x = 20,119.36