Finding the Fourth Proportional to 49,176, 73,764.72 and 12,240

Step by Step Solution

1. Step 1: Write the proportion equation
   49,176 : 73,764.72 = 12,240 : x
2. Step 2: Convert to fraction form
   49,176/73,764.72 = 12,240/x
3. Step 3: Cross multiply
   49,176x = 73,764.72 × 12,240
4. Step 4: Simplify right side
   49,176x = 902,880,172.80
5. Step 5: Solve for x
   x = 902,880,172.80/49,176
6. Step 6: Final answer
   x = 18,360.18