Finding the Fourth Proportional to 89,690.62, 123,773.91 and 49,404.56

Step by Step Solution

1. Step 1: Write the proportion equation
   89,690.62 : 123,773.91 = 49,404.56 : x
2. Step 2: Convert to fraction form
   89,690.62/123,773.91 = 49,404.56/x
3. Step 3: Cross multiply
   89,690.62x = 123,773.91 × 49,404.56
4. Step 4: Simplify right side
   89,690.62x = 6,114,995,563.03
5. Step 5: Solve for x
   x = 6,114,995,563.03/89,690.62
6. Step 6: Final answer
   x = 68,178.76