Finding the Fourth Proportional to 89,499.11, 123,507.63 and 49,212.54

Step by Step Solution

1. Step 1: Write the proportion equation
   89,499.11 : 123,507.63 = 49,212.54 : x
2. Step 2: Convert to fraction form
   89,499.11/123,507.63 = 49,212.54/x
3. Step 3: Cross multiply
   89,499.11x = 123,507.63 × 49,212.54
4. Step 4: Simplify right side
   89,499.11x = 6,078,124,181.68
5. Step 5: Solve for x
   x = 6,078,124,181.68/89,499.11
6. Step 6: Final answer
   x = 67,912.68