Finding the Fourth Proportional to 89,388.50, 123,350.04 and 49,103.96

Step by Step Solution

1. Step 1: Write the proportion equation
   89,388.50 : 123,350.04 = 49,103.96 : x
2. Step 2: Convert to fraction form
   89,388.50/123,350.04 = 49,103.96/x
3. Step 3: Cross multiply
   89,388.50x = 123,350.04 × 49,103.96
4. Step 4: Simplify right side
   89,388.50x = 6,056,974,813.41
5. Step 5: Solve for x
   x = 6,056,974,813.41/89,388.50
6. Step 6: Final answer
   x = 67,760.12