Finding the Fourth Proportional to 50,870.98, 70,209.15 and 28,214.98

Step by Step Solution

1. Step 1: Write the proportion equation
   50,870.98 : 70,209.15 = 28,214.98 : x
2. Step 2: Convert to fraction form
   50,870.98/70,209.15 = 28,214.98/x
3. Step 3: Cross multiply
   50,870.98x = 70,209.15 × 28,214.98
4. Step 4: Simplify right side
   50,870.98x = 1,980,949,763.07
5. Step 5: Solve for x
   x = 1,980,949,763.07/50,870.98
6. Step 6: Final answer
   x = 38,940.66