Finding the Fourth Proportional to 50,870.99, 70,202.57 and 28,210.28

Step by Step Solution

1. Step 1: Write the proportion equation
   50,870.99 : 70,202.57 = 28,210.28 : x
2. Step 2: Convert to fraction form
   50,870.99/70,202.57 = 28,210.28/x
3. Step 3: Cross multiply
   50,870.99x = 70,202.57 × 28,210.28
4. Step 4: Simplify right side
   50,870.99x = 1,980,433,664.36
5. Step 5: Solve for x
   x = 1,980,433,664.36/50,870.99
6. Step 6: Final answer
   x = 38,930.52