Finding the Fourth Proportional to 35,894.31, 49,535.78 and 19,979.79

Step by Step Solution

1. Step 1: Write the proportion equation
   35,894.31 : 49,535.78 = 19,979.79 : x
2. Step 2: Convert to fraction form
   35,894.31/49,535.78 = 19,979.79/x
3. Step 3: Cross multiply
   35,894.31x = 49,535.78 × 19,979.79
4. Step 4: Simplify right side
   35,894.31x = 989,714,481.89
5. Step 5: Solve for x
   x = 989,714,481.89/35,894.31
6. Step 6: Final answer
   x = 27,573.02