Finding the Fourth Proportional to 50,959.62, 70,321.91 and 28,300.05

Step by Step Solution

1. Step 1: Write the proportion equation
   50,959.62 : 70,321.91 = 28,300.05 : x
2. Step 2: Convert to fraction form
   50,959.62/70,321.91 = 28,300.05/x
3. Step 3: Cross multiply
   50,959.62x = 70,321.91 × 28,300.05
4. Step 4: Simplify right side
   50,959.62x = 1,990,113,427.60
5. Step 5: Solve for x
   x = 1,990,113,427.60/50,959.62
6. Step 6: Final answer
   x = 39,052.75