Finding the Fourth Proportional to 85,119.18, 117,455.82 and 49,320.72

Step by Step Solution

1. Step 1: Write the proportion equation
   85,119.18 : 117,455.82 = 49,320.72 : x
2. Step 2: Convert to fraction form
   85,119.18/117,455.82 = 49,320.72/x
3. Step 3: Cross multiply
   85,119.18x = 117,455.82 × 49,320.72
4. Step 4: Simplify right side
   85,119.18x = 5,793,005,610.59
5. Step 5: Solve for x
   x = 5,793,005,610.59/85,119.18
6. Step 6: Final answer
   x = 68,057.58