Finding the Fourth Proportional to 79,729, 119,667.31 and 40,313.79

Step by Step Solution

1. Step 1: Write the proportion equation
   79,729 : 119,667.31 = 40,313.79 : x
2. Step 2: Convert to fraction form
   79,729/119,667.31 = 40,313.79/x
3. Step 3: Cross multiply
   79,729x = 119,667.31 × 40,313.79
4. Step 4: Simplify right side
   79,729x = 4,824,242,805.20
5. Step 5: Solve for x
   x = 4,824,242,805.20/79,729
6. Step 6: Final answer
   x = 60,508.01