Finding the Fourth Proportional to 79,692.48, 109,960.59 and 49,485.15

Step by Step Solution

1. Step 1: Write the proportion equation
   79,692.48 : 109,960.59 = 49,485.15 : x
2. Step 2: Convert to fraction form
   79,692.48/109,960.59 = 49,485.15/x
3. Step 3: Cross multiply
   79,692.48x = 109,960.59 × 49,485.15
4. Step 4: Simplify right side
   79,692.48x = 5,441,416,290.24
5. Step 5: Solve for x
   x = 5,441,416,290.24/79,692.48
6. Step 6: Final answer
   x = 68,280.17