Finding the Fourth Proportional to 49,606.72, 68,448.96 and 28,381.60

Step by Step Solution

1. Step 1: Write the proportion equation
   49,606.72 : 68,448.96 = 28,381.60 : x
2. Step 2: Convert to fraction form
   49,606.72/68,448.96 = 28,381.60/x
3. Step 3: Cross multiply
   49,606.72x = 68,448.96 × 28,381.60
4. Step 4: Simplify right side
   49,606.72x = 1,942,691,003.14
5. Step 5: Solve for x
   x = 1,942,691,003.14/49,606.72
6. Step 6: Final answer
   x = 39,161.85