Finding the Fourth Proportional to 50,921, 70,271.46 and 28,565.48

Step by Step Solution

1. Step 1: Write the proportion equation
   50,921 : 70,271.46 = 28,565.48 : x
2. Step 2: Convert to fraction form
   50,921/70,271.46 = 28,565.48/x
3. Step 3: Cross multiply
   50,921x = 70,271.46 × 28,565.48
4. Step 4: Simplify right side
   50,921x = 2,007,337,985.20
5. Step 5: Solve for x
   x = 2,007,337,985.20/50,921
6. Step 6: Final answer
   x = 39,420.63