Finding the Fourth Proportional to 33,109.26, 49,641.97 and 13,105.50

Step by Step Solution

1. Step 1: Write the proportion equation
   33,109.26 : 49,641.97 = 13,105.50 : x
2. Step 2: Convert to fraction form
   33,109.26/49,641.97 = 13,105.50/x
3. Step 3: Cross multiply
   33,109.26x = 49,641.97 × 13,105.50
4. Step 4: Simplify right side
   33,109.26x = 650,582,837.84
5. Step 5: Solve for x
   x = 650,582,837.84/33,109.26
6. Step 6: Final answer
   x = 19,649.57