Finding the Fourth Proportional to 89,502.72, 123,514.56 and 49,215.48

Step by Step Solution

1. Step 1: Write the proportion equation
   89,502.72 : 123,514.56 = 49,215.48 : x
2. Step 2: Convert to fraction form
   89,502.72/123,514.56 = 49,215.48/x
3. Step 3: Cross multiply
   89,502.72x = 123,514.56 × 49,215.48
4. Step 4: Simplify right side
   89,502.72x = 6,078,828,357.39
5. Step 5: Solve for x
   x = 6,078,828,357.39/89,502.72
6. Step 6: Final answer
   x = 67,917.81