Finding the Fourth Proportional to 89,788.78, 123,914.10 and 49,502.48

Step by Step Solution

1. Step 1: Write the proportion equation
   89,788.78 : 123,914.10 = 49,502.48 : x
2. Step 2: Convert to fraction form
   89,788.78/123,914.10 = 49,502.48/x
3. Step 3: Cross multiply
   89,788.78x = 123,914.10 × 49,502.48
4. Step 4: Simplify right side
   89,788.78x = 6,134,055,868.56
5. Step 5: Solve for x
   x = 6,134,055,868.56/89,788.78
6. Step 6: Final answer
   x = 68,316.51