Finding the Fourth Proportional to 79,864.43, 119,694.87 and 42,442.43

Step by Step Solution

1. Step 1: Write the proportion equation
   79,864.43 : 119,694.87 = 42,442.43 : x
2. Step 2: Convert to fraction form
   79,864.43/119,694.87 = 42,442.43/x
3. Step 3: Cross multiply
   79,864.43x = 119,694.87 × 42,442.43
4. Step 4: Simplify right side
   79,864.43x = 5,080,141,141.33
5. Step 5: Solve for x
   x = 5,080,141,141.33/79,864.43
6. Step 6: Final answer
   x = 63,609.56