Finding the Fourth Proportional to 35,786.71, 49,384.86 and 19,870.87

Step by Step Solution

1. Step 1: Write the proportion equation
   35,786.71 : 49,384.86 = 19,870.87 : x
2. Step 2: Convert to fraction form
   35,786.71/49,384.86 = 19,870.87/x
3. Step 3: Cross multiply
   35,786.71x = 49,384.86 × 19,870.87
4. Step 4: Simplify right side
   35,786.71x = 981,320,133.03
5. Step 5: Solve for x
   x = 981,320,133.03/35,786.71
6. Step 6: Final answer
   x = 27,421.36