Finding the Fourth Proportional to 89,722.91, 123,817.59 and 49,436.55

Step by Step Solution

1. Step 1: Write the proportion equation
   89,722.91 : 123,817.59 = 49,436.55 : x
2. Step 2: Convert to fraction form
   89,722.91/123,817.59 = 49,436.55/x
3. Step 3: Cross multiply
   89,722.91x = 123,817.59 × 49,436.55
4. Step 4: Simplify right side
   89,722.91x = 6,121,114,478.91
5. Step 5: Solve for x
   x = 6,121,114,478.91/89,722.91
6. Step 6: Final answer
   x = 68,222.43