Finding the Fourth Proportional to 89,455.50, 123,448.83 and 49,711.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,455.50 : 123,448.83 = 49,711.50 : x
2. Step 2: Convert to fraction form
   89,455.50/123,448.83 = 49,711.50/x
3. Step 3: Cross multiply
   89,455.50x = 123,448.83 × 49,711.50
4. Step 4: Simplify right side
   89,455.50x = 6,136,826,512.55
5. Step 5: Solve for x
   x = 6,136,826,512.55/89,455.50
6. Step 6: Final answer
   x = 68,602.00