Finding the Fourth Proportional to 89,223.57, 123,131.97 and 48,939.03

Step by Step Solution

1. Step 1: Write the proportion equation
   89,223.57 : 123,131.97 = 48,939.03 : x
2. Step 2: Convert to fraction form
   89,223.57/123,131.97 = 48,939.03/x
3. Step 3: Cross multiply
   89,223.57x = 123,131.97 × 48,939.03
4. Step 4: Simplify right side
   89,223.57x = 6,025,959,173.79
5. Step 5: Solve for x
   x = 6,025,959,173.79/89,223.57
6. Step 6: Final answer
   x = 67,537.75