Finding the Fourth Proportional to 89,814.24, 123,940.78 and 49,528.75

Step by Step Solution

1. Step 1: Write the proportion equation
   89,814.24 : 123,940.78 = 49,528.75 : x
2. Step 2: Convert to fraction form
   89,814.24/123,940.78 = 49,528.75/x
3. Step 3: Cross multiply
   89,814.24x = 123,940.78 × 49,528.75
4. Step 4: Simplify right side
   89,814.24x = 6,138,631,907.43
5. Step 5: Solve for x
   x = 6,138,631,907.43/89,814.24
6. Step 6: Final answer
   x = 68,348.09