Finding the Fourth Proportional to 50,889.33, 70,235.69 and 28,235.61

Step by Step Solution

1. Step 1: Write the proportion equation
   50,889.33 : 70,235.69 = 28,235.61 : x
2. Step 2: Convert to fraction form
   50,889.33/70,235.69 = 28,235.61/x
3. Step 3: Cross multiply
   50,889.33x = 70,235.69 × 28,235.61
4. Step 4: Simplify right side
   50,889.33x = 1,983,147,585.33
5. Step 5: Solve for x
   x = 1,983,147,585.33/50,889.33
6. Step 6: Final answer
   x = 38,969.81