Finding the Fourth Proportional to 89,142.99, 123,016.28 and 48,306.30

Step by Step Solution

1. Step 1: Write the proportion equation
   89,142.99 : 123,016.28 = 48,306.30 : x
2. Step 2: Convert to fraction form
   89,142.99/123,016.28 = 48,306.30/x
3. Step 3: Cross multiply
   89,142.99x = 123,016.28 × 48,306.30
4. Step 4: Simplify right side
   89,142.99x = 5,942,461,326.56
5. Step 5: Solve for x
   x = 5,942,461,326.56/89,142.99
6. Step 6: Final answer
   x = 66,662.13