Finding the Fourth Proportional to 89,691.30, 123,769.41 and 49,404.19

Step by Step Solution

1. Step 1: Write the proportion equation
   89,691.30 : 123,769.41 = 49,404.19 : x
2. Step 2: Convert to fraction form
   89,691.30/123,769.41 = 49,404.19/x
3. Step 3: Cross multiply
   89,691.30x = 123,769.41 × 49,404.19
4. Step 4: Simplify right side
   89,691.30x = 6,114,727,447.83
5. Step 5: Solve for x
   x = 6,114,727,447.83/89,691.30
6. Step 6: Final answer
   x = 68,175.26