Finding the Fourth Proportional to 79,674.21, 119,518.61 and 20,510.06

Step by Step Solution

1. Step 1: Write the proportion equation
   79,674.21 : 119,518.61 = 20,510.06 : x
2. Step 2: Convert to fraction form
   79,674.21/119,518.61 = 20,510.06/x
3. Step 3: Cross multiply
   79,674.21x = 119,518.61 × 20,510.06
4. Step 4: Simplify right side
   79,674.21x = 2,451,333,162.07
5. Step 5: Solve for x
   x = 2,451,333,162.07/79,674.21
6. Step 6: Final answer
   x = 30,766.96