Finding the Fourth Proportional to 49,054.30, 67,694.27 and 28,912.03

Step by Step Solution

1. Step 1: Write the proportion equation
   49,054.30 : 67,694.27 = 28,912.03 : x
2. Step 2: Convert to fraction form
   49,054.30/67,694.27 = 28,912.03/x
3. Step 3: Cross multiply
   49,054.30x = 67,694.27 × 28,912.03
4. Step 4: Simplify right side
   49,054.30x = 1,957,178,451.27
5. Step 5: Solve for x
   x = 1,957,178,451.27/49,054.30
6. Step 6: Final answer
   x = 39,898.21