Finding the Fourth Proportional to 35,500.09, 48,987.60 and 19,979.97

Step by Step Solution

1. Step 1: Write the proportion equation
   35,500.09 : 48,987.60 = 19,979.97 : x
2. Step 2: Convert to fraction form
   35,500.09/48,987.60 = 19,979.97/x
3. Step 3: Cross multiply
   35,500.09x = 48,987.60 × 19,979.97
4. Step 4: Simplify right side
   35,500.09x = 978,770,892.28
5. Step 5: Solve for x
   x = 978,770,892.28/35,500.09
6. Step 6: Final answer
   x = 27,570.94