Finding the Fourth Proportional to 35,786.79, 49,385.03 and 19,870.29

Step by Step Solution

1. Step 1: Write the proportion equation
   35,786.79 : 49,385.03 = 19,870.29 : x
2. Step 2: Convert to fraction form
   35,786.79/49,385.03 = 19,870.29/x
3. Step 3: Cross multiply
   35,786.79x = 49,385.03 × 19,870.29
4. Step 4: Simplify right side
   35,786.79x = 981,294,768.41
5. Step 5: Solve for x
   x = 981,294,768.41/35,786.79
6. Step 6: Final answer
   x = 27,420.59