Finding the Fourth Proportional to 49,196.45, 73,786.76 and 14,128.13

Step by Step Solution

1. Step 1: Write the proportion equation
   49,196.45 : 73,786.76 = 14,128.13 : x
2. Step 2: Convert to fraction form
   49,196.45/73,786.76 = 14,128.13/x
3. Step 3: Cross multiply
   49,196.45x = 73,786.76 × 14,128.13
4. Step 4: Simplify right side
   49,196.45x = 1,042,468,866.92
5. Step 5: Solve for x
   x = 1,042,468,866.92/49,196.45
6. Step 6: Final answer
   x = 21,189.92