Finding the Fourth Proportional to 89,241.13, 123,200.72 and 68,928.42

Step by Step Solution

1. Step 1: Write the proportion equation
   89,241.13 : 123,200.72 = 68,928.42 : x
2. Step 2: Convert to fraction form
   89,241.13/123,200.72 = 68,928.42/x
3. Step 3: Cross multiply
   89,241.13x = 123,200.72 × 68,928.42
4. Step 4: Simplify right side
   89,241.13x = 8,492,031,144.78
5. Step 5: Solve for x
   x = 8,492,031,144.78/89,241.13
6. Step 6: Final answer
   x = 95,158.27