Finding the Fourth Proportional to 89,142.14, 123,019.54 and 50,907.92

Step by Step Solution

1. Step 1: Write the proportion equation
   89,142.14 : 123,019.54 = 50,907.92 : x
2. Step 2: Convert to fraction form
   89,142.14/123,019.54 = 50,907.92/x
3. Step 3: Cross multiply
   89,142.14x = 123,019.54 × 50,907.92
4. Step 4: Simplify right side
   89,142.14x = 6,262,668,900.76
5. Step 5: Solve for x
   x = 6,262,668,900.76/89,142.14
6. Step 6: Final answer
   x = 70,254.86