Finding the Fourth Proportional to 67,621.98, 101,458.89 and 28,168.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,621.98 : 101,458.89 = 28,168.50 : x
2. Step 2: Convert to fraction form
   67,621.98/101,458.89 = 28,168.50/x
3. Step 3: Cross multiply
   67,621.98x = 101,458.89 × 28,168.50
4. Step 4: Simplify right side
   67,621.98x = 2,857,944,742.97
5. Step 5: Solve for x
   x = 2,857,944,742.97/67,621.98
6. Step 6: Final answer
   x = 42,263.55