Finding the Fourth Proportional to 89,147.94, 123,008.48 and 50,890.02

Step by Step Solution

1. Step 1: Write the proportion equation
   89,147.94 : 123,008.48 = 50,890.02 : x
2. Step 2: Convert to fraction form
   89,147.94/123,008.48 = 50,890.02/x
3. Step 3: Cross multiply
   89,147.94x = 123,008.48 × 50,890.02
4. Step 4: Simplify right side
   89,147.94x = 6,259,904,007.37
5. Step 5: Solve for x
   x = 6,259,904,007.37/89,147.94
6. Step 6: Final answer
   x = 70,219.28