Finding the Fourth Proportional to 79,668, 119,493.72 and 49,997.88

Step by Step Solution

1. Step 1: Write the proportion equation
   79,668 : 119,493.72 = 49,997.88 : x
2. Step 2: Convert to fraction form
   79,668/119,493.72 = 49,997.88/x
3. Step 3: Cross multiply
   79,668x = 119,493.72 × 49,997.88
4. Step 4: Simplify right side
   79,668x = 5,974,432,673.31
5. Step 5: Solve for x
   x = 5,974,432,673.31/79,668
6. Step 6: Final answer
   x = 74,991.62