Finding the Fourth Proportional to 33,216.15, 49,837.67 and 13,489.59

Step by Step Solution

1. Step 1: Write the proportion equation
   33,216.15 : 49,837.67 = 13,489.59 : x
2. Step 2: Convert to fraction form
   33,216.15/49,837.67 = 13,489.59/x
3. Step 3: Cross multiply
   33,216.15x = 49,837.67 × 13,489.59
4. Step 4: Simplify right side
   33,216.15x = 672,289,667.41
5. Step 5: Solve for x
   x = 672,289,667.41/33,216.15
6. Step 6: Final answer
   x = 20,239.84