Finding the Fourth Proportional to 79,968, 119,943.42 and 42,488.34

Step by Step Solution

1. Step 1: Write the proportion equation
   79,968 : 119,943.42 = 42,488.34 : x
2. Step 2: Convert to fraction form
   79,968/119,943.42 = 42,488.34/x
3. Step 3: Cross multiply
   79,968x = 119,943.42 × 42,488.34
4. Step 4: Simplify right side
   79,968x = 5,096,196,809.72
5. Step 5: Solve for x
   x = 5,096,196,809.72/79,968
6. Step 6: Final answer
   x = 63,727.95