Finding the Fourth Proportional to 79,628.34, 109,841.40 and 49,768.50

Step by Step Solution

1. Step 1: Write the proportion equation
   79,628.34 : 109,841.40 = 49,768.50 : x
2. Step 2: Convert to fraction form
   79,628.34/109,841.40 = 49,768.50/x
3. Step 3: Cross multiply
   79,628.34x = 109,841.40 × 49,768.50
4. Step 4: Simplify right side
   79,628.34x = 5,466,641,715.90
5. Step 5: Solve for x
   x = 5,466,641,715.90/79,628.34
6. Step 6: Final answer
   x = 68,651.96