Finding the Fourth Proportional to 72,986.78, 100,721.94 and 41,156.22

Step by Step Solution

1. Step 1: Write the proportion equation
   72,986.78 : 100,721.94 = 41,156.22 : x
2. Step 2: Convert to fraction form
   72,986.78/100,721.94 = 41,156.22/x
3. Step 3: Cross multiply
   72,986.78x = 100,721.94 × 41,156.22
4. Step 4: Simplify right side
   72,986.78x = 4,145,334,321.47
5. Step 5: Solve for x
   x = 4,145,334,321.47/72,986.78
6. Step 6: Final answer
   x = 56,795.69