Finding the Fourth Proportional to 85,704.40, 118,243.42 and 49,886.83

Step by Step Solution

1. Step 1: Write the proportion equation
   85,704.40 : 118,243.42 = 49,886.83 : x
2. Step 2: Convert to fraction form
   85,704.40/118,243.42 = 49,886.83/x
3. Step 3: Cross multiply
   85,704.40x = 118,243.42 × 49,886.83
4. Step 4: Simplify right side
   85,704.40x = 5,898,789,392.16
5. Step 5: Solve for x
   x = 5,898,789,392.16/85,704.40
6. Step 6: Final answer
   x = 68,827.15