Finding the Fourth Proportional to 56,940.57, 78,582.42 and 41,902.38

Step by Step Solution

1. Step 1: Write the proportion equation
   56,940.57 : 78,582.42 = 41,902.38 : x
2. Step 2: Convert to fraction form
   56,940.57/78,582.42 = 41,902.38/x
3. Step 3: Cross multiply
   56,940.57x = 78,582.42 × 41,902.38
4. Step 4: Simplify right side
   56,940.57x = 3,292,790,424.16
5. Step 5: Solve for x
   x = 3,292,790,424.16/56,940.57
6. Step 6: Final answer
   x = 57,828.55