Finding the Fourth Proportional to 85,516.86, 118,020.54 and 49,704.59

Step by Step Solution

1. Step 1: Write the proportion equation
   85,516.86 : 118,020.54 = 49,704.59 : x
2. Step 2: Convert to fraction form
   85,516.86/118,020.54 = 49,704.59/x
3. Step 3: Cross multiply
   85,516.86x = 118,020.54 × 49,704.59
4. Step 4: Simplify right side
   85,516.86x = 5,866,162,369.86
5. Step 5: Solve for x
   x = 5,866,162,369.86/85,516.86
6. Step 6: Final answer
   x = 68,596.56