Finding the Fourth Proportional to 85,789.38, 118,386.18 and 47,550.54

Step by Step Solution

1. Step 1: Write the proportion equation
   85,789.38 : 118,386.18 = 47,550.54 : x
2. Step 2: Convert to fraction form
   85,789.38/118,386.18 = 47,550.54/x
3. Step 3: Cross multiply
   85,789.38x = 118,386.18 × 47,550.54
4. Step 4: Simplify right side
   85,789.38x = 5,629,326,787.54
5. Step 5: Solve for x
   x = 5,629,326,787.54/85,789.38
6. Step 6: Final answer
   x = 65,617.99