Finding the Fourth Proportional to 50,940.12, 76,485.16 and 28,494.79

Step by Step Solution

1. Step 1: Write the proportion equation
   50,940.12 : 76,485.16 = 28,494.79 : x
2. Step 2: Convert to fraction form
   50,940.12/76,485.16 = 28,494.79/x
3. Step 3: Cross multiply
   50,940.12x = 76,485.16 × 28,494.79
4. Step 4: Simplify right side
   50,940.12x = 2,179,428,416.72
5. Step 5: Solve for x
   x = 2,179,428,416.72/50,940.12
6. Step 6: Final answer
   x = 42,784.12