Finding the Fourth Proportional to 89,934.48, 124,109.78 and 49,648.30

Step by Step Solution

1. Step 1: Write the proportion equation
   89,934.48 : 124,109.78 = 49,648.30 : x
2. Step 2: Convert to fraction form
   89,934.48/124,109.78 = 49,648.30/x
3. Step 3: Cross multiply
   89,934.48x = 124,109.78 × 49,648.30
4. Step 4: Simplify right side
   89,934.48x = 6,161,839,590.37
5. Step 5: Solve for x
   x = 6,161,839,590.37/89,934.48
6. Step 6: Final answer
   x = 68,514.76