Finding the Fourth Proportional to 33,887.08, 50,807.92 and 13,086.28

Step by Step Solution

1. Step 1: Write the proportion equation
   33,887.08 : 50,807.92 = 13,086.28 : x
2. Step 2: Convert to fraction form
   33,887.08/50,807.92 = 13,086.28/x
3. Step 3: Cross multiply
   33,887.08x = 50,807.92 × 13,086.28
4. Step 4: Simplify right side
   33,887.08x = 664,886,667.34
5. Step 5: Solve for x
   x = 664,886,667.34/33,887.08
6. Step 6: Final answer
   x = 19,620.65