Finding the Fourth Proportional to 89,912, 124,078.56 and 50,168

Step by Step Solution

1. Step 1: Write the proportion equation
   89,912 : 124,078.56 = 50,168 : x
2. Step 2: Convert to fraction form
   89,912/124,078.56 = 50,168/x
3. Step 3: Cross multiply
   89,912x = 124,078.56 × 50,168
4. Step 4: Simplify right side
   89,912x = 6,224,773,198.08
5. Step 5: Solve for x
   x = 6,224,773,198.08/89,912
6. Step 6: Final answer
   x = 69,231.84