Finding the Fourth Proportional to 89,709, 123,798.42 and 49,965

Step by Step Solution

1. Step 1: Write the proportion equation
   89,709 : 123,798.42 = 49,965 : x
2. Step 2: Convert to fraction form
   89,709/123,798.42 = 49,965/x
3. Step 3: Cross multiply
   89,709x = 123,798.42 × 49,965
4. Step 4: Simplify right side
   89,709x = 6,185,588,055.30
5. Step 5: Solve for x
   x = 6,185,588,055.30/89,709
6. Step 6: Final answer
   x = 68,951.70