Finding the Fourth Proportional to 50,430, 69,597.72 and 28,078.32

Step by Step Solution

1. Step 1: Write the proportion equation
   50,430 : 69,597.72 = 28,078.32 : x
2. Step 2: Convert to fraction form
   50,430/69,597.72 = 28,078.32/x
3. Step 3: Cross multiply
   50,430x = 69,597.72 × 28,078.32
4. Step 4: Simplify right side
   50,430x = 1,954,187,053.43
5. Step 5: Solve for x
   x = 1,954,187,053.43/50,430
6. Step 6: Final answer
   x = 38,750.49