Finding the Fourth Proportional to 67,178.52, 100,573.20 and 50,608.32

Step by Step Solution

1. Step 1: Write the proportion equation
   67,178.52 : 100,573.20 = 50,608.32 : x
2. Step 2: Convert to fraction form
   67,178.52/100,573.20 = 50,608.32/x
3. Step 3: Cross multiply
   67,178.52x = 100,573.20 × 50,608.32
4. Step 4: Simplify right side
   67,178.52x = 5,089,840,689.02
5. Step 5: Solve for x
   x = 5,089,840,689.02/67,178.52
6. Step 6: Final answer
   x = 75,765.89