Finding the Fourth Proportional to 35,939.88, 49,601.42 and 21,792.68

Step by Step Solution

1. Step 1: Write the proportion equation
   35,939.88 : 49,601.42 = 21,792.68 : x
2. Step 2: Convert to fraction form
   35,939.88/49,601.42 = 21,792.68/x
3. Step 3: Cross multiply
   35,939.88x = 49,601.42 × 21,792.68
4. Step 4: Simplify right side
   35,939.88x = 1,080,947,873.61
5. Step 5: Solve for x
   x = 1,080,947,873.61/35,939.88
6. Step 6: Final answer
   x = 30,076.56