Finding the Fourth Proportional to 35,926.72, 53,896.20 and 12,231.76

Step by Step Solution

1. Step 1: Write the proportion equation
   35,926.72 : 53,896.20 = 12,231.76 : x
2. Step 2: Convert to fraction form
   35,926.72/53,896.20 = 12,231.76/x
3. Step 3: Cross multiply
   35,926.72x = 53,896.20 × 12,231.76
4. Step 4: Simplify right side
   35,926.72x = 659,245,383.31
5. Step 5: Solve for x
   x = 659,245,383.31/35,926.72
6. Step 6: Final answer
   x = 18,349.72