Finding the Fourth Proportional to 31,636.83, 43,667.49 and 19,693.08

Step by Step Solution

1. Step 1: Write the proportion equation
   31,636.83 : 43,667.49 = 19,693.08 : x
2. Step 2: Convert to fraction form
   31,636.83/43,667.49 = 19,693.08/x
3. Step 3: Cross multiply
   31,636.83x = 43,667.49 × 19,693.08
4. Step 4: Simplify right side
   31,636.83x = 859,947,373.97
5. Step 5: Solve for x
   x = 859,947,373.97/31,636.83
6. Step 6: Final answer
   x = 27,181.84