Finding the Fourth Proportional to 85,109.50, 117,451.20 and 49,301.56

Step by Step Solution

1. Step 1: Write the proportion equation
   85,109.50 : 117,451.20 = 49,301.56 : x
2. Step 2: Convert to fraction form
   85,109.50/117,451.20 = 49,301.56/x
3. Step 3: Cross multiply
   85,109.50x = 117,451.20 × 49,301.56
4. Step 4: Simplify right side
   85,109.50x = 5,790,527,383.87
5. Step 5: Solve for x
   x = 5,790,527,383.87/85,109.50
6. Step 6: Final answer
   x = 68,036.20