Finding the Fourth Proportional to 85,105.44, 117,450.64 and 49,306.72

Step by Step Solution

1. Step 1: Write the proportion equation
   85,105.44 : 117,450.64 = 49,306.72 : x
2. Step 2: Convert to fraction form
   85,105.44/117,450.64 = 49,306.72/x
3. Step 3: Cross multiply
   85,105.44x = 117,450.64 × 49,306.72
4. Step 4: Simplify right side
   85,105.44x = 5,791,105,820.30
5. Step 5: Solve for x
   x = 5,791,105,820.30/85,105.44
6. Step 6: Final answer
   x = 68,046.25