Finding the Fourth Proportional to 50,879.72, 70,213.56 and 28,523.72

Step by Step Solution

1. Step 1: Write the proportion equation
   50,879.72 : 70,213.56 = 28,523.72 : x
2. Step 2: Convert to fraction form
   50,879.72/70,213.56 = 28,523.72/x
3. Step 3: Cross multiply
   50,879.72x = 70,213.56 × 28,523.72
4. Step 4: Simplify right side
   50,879.72x = 2,002,751,925.64
5. Step 5: Solve for x
   x = 2,002,751,925.64/50,879.72
6. Step 6: Final answer
   x = 39,362.48