Finding the Fourth Proportional to 89,219.33, 123,111.25 and 50,981.31

Step by Step Solution

1. Step 1: Write the proportion equation
   89,219.33 : 123,111.25 = 50,981.31 : x
2. Step 2: Convert to fraction form
   89,219.33/123,111.25 = 50,981.31/x
3. Step 3: Cross multiply
   89,219.33x = 123,111.25 × 50,981.31
4. Step 4: Simplify right side
   89,219.33x = 6,276,372,673.28
5. Step 5: Solve for x
   x = 6,276,372,673.28/89,219.33
6. Step 6: Final answer
   x = 70,347.68