Finding the Fourth Proportional to 79,994.52, 119,990.52 and 20,828.88

Step by Step Solution

1. Step 1: Write the proportion equation
   79,994.52 : 119,990.52 = 20,828.88 : x
2. Step 2: Convert to fraction form
   79,994.52/119,990.52 = 20,828.88/x
3. Step 3: Cross multiply
   79,994.52x = 119,990.52 × 20,828.88
4. Step 4: Simplify right side
   79,994.52x = 2,499,268,142.22
5. Step 5: Solve for x
   x = 2,499,268,142.22/79,994.52
6. Step 6: Final answer
   x = 31,242.99