Finding the Fourth Proportional to 85,518.02, 118,005.72 and 49,700.54

Step by Step Solution

1. Step 1: Write the proportion equation
   85,518.02 : 118,005.72 = 49,700.54 : x
2. Step 2: Convert to fraction form
   85,518.02/118,005.72 = 49,700.54/x
3. Step 3: Cross multiply
   85,518.02x = 118,005.72 × 49,700.54
4. Step 4: Simplify right side
   85,518.02x = 5,864,948,007.09
5. Step 5: Solve for x
   x = 5,864,948,007.09/85,518.02
6. Step 6: Final answer
   x = 68,581.43