Finding the Fourth Proportional to 89,825.30, 123,961.99 and 49,540.30

Step by Step Solution

1. Step 1: Write the proportion equation
   89,825.30 : 123,961.99 = 49,540.30 : x
2. Step 2: Convert to fraction form
   89,825.30/123,961.99 = 49,540.30/x
3. Step 3: Cross multiply
   89,825.30x = 123,961.99 × 49,540.30
4. Step 4: Simplify right side
   89,825.30x = 6,141,114,173.20
5. Step 5: Solve for x
   x = 6,141,114,173.20/89,825.30
6. Step 6: Final answer
   x = 68,367.31