Finding the Fourth Proportional to 89,689.05, 123,771.74 and 49,404.24

Step by Step Solution

1. Step 1: Write the proportion equation
   89,689.05 : 123,771.74 = 49,404.24 : x
2. Step 2: Convert to fraction form
   89,689.05/123,771.74 = 49,404.24/x
3. Step 3: Cross multiply
   89,689.05x = 123,771.74 × 49,404.24
4. Step 4: Simplify right side
   89,689.05x = 6,114,848,501.16
5. Step 5: Solve for x
   x = 6,114,848,501.16/89,689.05
6. Step 6: Final answer
   x = 68,178.32