Finding the Fourth Proportional to 85,709.98, 128,647.89 and 41,367.94

Step by Step Solution

1. Step 1: Write the proportion equation
   85,709.98 : 128,647.89 = 41,367.94 : x
2. Step 2: Convert to fraction form
   85,709.98/128,647.89 = 41,367.94/x
3. Step 3: Cross multiply
   85,709.98x = 128,647.89 × 41,367.94
4. Step 4: Simplify right side
   85,709.98x = 5,321,898,194.65
5. Step 5: Solve for x
   x = 5,321,898,194.65/85,709.98
6. Step 6: Final answer
   x = 62,091.93