Finding the Fourth Proportional to 49,640.13, 68,477.72 and 30,744.45

Step by Step Solution

1. Step 1: Write the proportion equation
   49,640.13 : 68,477.72 = 30,744.45 : x
2. Step 2: Convert to fraction form
   49,640.13/68,477.72 = 30,744.45/x
3. Step 3: Cross multiply
   49,640.13x = 68,477.72 × 30,744.45
4. Step 4: Simplify right side
   49,640.13x = 2,105,309,838.65
5. Step 5: Solve for x
   x = 2,105,309,838.65/49,640.13
6. Step 6: Final answer
   x = 42,411.45