Finding the Fourth Proportional to 89,665.02, 123,738.62 and 49,380.03

Step by Step Solution

1. Step 1: Write the proportion equation
   89,665.02 : 123,738.62 = 49,380.03 : x
2. Step 2: Convert to fraction form
   89,665.02/123,738.62 = 49,380.03/x
3. Step 3: Cross multiply
   89,665.02x = 123,738.62 × 49,380.03
4. Step 4: Simplify right side
   89,665.02x = 6,110,216,520.86
5. Step 5: Solve for x
   x = 6,110,216,520.86/89,665.02
6. Step 6: Final answer
   x = 68,144.93