Finding the Fourth Proportional to 50,880.82, 70,211.73 and 28,520.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,880.82 : 70,211.73 = 28,520.50 : x
2. Step 2: Convert to fraction form
   50,880.82/70,211.73 = 28,520.50/x
3. Step 3: Cross multiply
   50,880.82x = 70,211.73 × 28,520.50
4. Step 4: Simplify right side
   50,880.82x = 2,002,473,645.47
5. Step 5: Solve for x
   x = 2,002,473,645.47/50,880.82
6. Step 6: Final answer
   x = 39,356.16