Finding the Fourth Proportional to 85,752.58, 118,345.89 and 49,945.90

Step by Step Solution

1. Step 1: Write the proportion equation
   85,752.58 : 118,345.89 = 49,945.90 : x
2. Step 2: Convert to fraction form
   85,752.58/118,345.89 = 49,945.90/x
3. Step 3: Cross multiply
   85,752.58x = 118,345.89 × 49,945.90
4. Step 4: Simplify right side
   85,752.58x = 5,910,891,987.35
5. Step 5: Solve for x
   x = 5,910,891,987.35/85,752.58
6. Step 6: Final answer
   x = 68,929.61