Finding the Fourth Proportional to 35,785.68, 49,383.98 and 19,870.19

Step by Step Solution

1. Step 1: Write the proportion equation
   35,785.68 : 49,383.98 = 19,870.19 : x
2. Step 2: Convert to fraction form
   35,785.68/49,383.98 = 19,870.19/x
3. Step 3: Cross multiply
   35,785.68x = 49,383.98 × 19,870.19
4. Step 4: Simplify right side
   35,785.68x = 981,269,065.56
5. Step 5: Solve for x
   x = 981,269,065.56/35,785.68
6. Step 6: Final answer
   x = 27,420.72