Finding the Fourth Proportional to 89,325, 123,268.50 and 49,581

Step by Step Solution

1. Step 1: Write the proportion equation
   89,325 : 123,268.50 = 49,581 : x
2. Step 2: Convert to fraction form
   89,325/123,268.50 = 49,581/x
3. Step 3: Cross multiply
   89,325x = 123,268.50 × 49,581
4. Step 4: Simplify right side
   89,325x = 6,111,775,498.50
5. Step 5: Solve for x
   x = 6,111,775,498.50/89,325
6. Step 6: Final answer
   x = 68,421.78