Finding the Fourth Proportional to 89,483.68, 123,481.12 and 49,196.40

Step by Step Solution

1. Step 1: Write the proportion equation
   89,483.68 : 123,481.12 = 49,196.40 : x
2. Step 2: Convert to fraction form
   89,483.68/123,481.12 = 49,196.40/x
3. Step 3: Cross multiply
   89,483.68x = 123,481.12 × 49,196.40
4. Step 4: Simplify right side
   89,483.68x = 6,074,826,571.97
5. Step 5: Solve for x
   x = 6,074,826,571.97/89,483.68
6. Step 6: Final answer
   x = 67,887.54