Finding the Fourth Proportional to 248,081.89, 371,790.69 and 121,528.41

Step by Step Solution

1. Step 1: Write the proportion equation
   248,081.89 : 371,790.69 = 121,528.41 : x
2. Step 2: Convert to fraction form
   248,081.89/371,790.69 = 121,528.41/x
3. Step 3: Cross multiply
   248,081.89x = 371,790.69 × 121,528.41
4. Step 4: Simplify right side
   248,081.89x = 45,183,131,408.50
5. Step 5: Solve for x
   x = 45,183,131,408.50/248,081.89
6. Step 6: Final answer
   x = 182,129.91