Finding the Fourth Proportional to 89,142.41, 123,017.49 and 48,855.31

Step by Step Solution

1. Step 1: Write the proportion equation
   89,142.41 : 123,017.49 = 48,855.31 : x
2. Step 2: Convert to fraction form
   89,142.41/123,017.49 = 48,855.31/x
3. Step 3: Cross multiply
   89,142.41x = 123,017.49 × 48,855.31
4. Step 4: Simplify right side
   89,142.41x = 6,010,057,423.97
5. Step 5: Solve for x
   x = 6,010,057,423.97/89,142.41
6. Step 6: Final answer
   x = 67,420.85