Finding the Fourth Proportional to 67,857.89, 101,770.43 and 28,444.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,857.89 : 101,770.43 = 28,444.50 : x
2. Step 2: Convert to fraction form
   67,857.89/101,770.43 = 28,444.50/x
3. Step 3: Cross multiply
   67,857.89x = 101,770.43 × 28,444.50
4. Step 4: Simplify right side
   67,857.89x = 2,894,808,853.91
5. Step 5: Solve for x
   x = 2,894,808,853.91/67,857.89
6. Step 6: Final answer
   x = 42,659.87