Finding the Fourth Proportional to 71,976.72, 99,329.82 and 40,151.82

Step by Step Solution

1. Step 1: Write the proportion equation
   71,976.72 : 99,329.82 = 40,151.82 : x
2. Step 2: Convert to fraction form
   71,976.72/99,329.82 = 40,151.82/x
3. Step 3: Cross multiply
   71,976.72x = 99,329.82 × 40,151.82
4. Step 4: Simplify right side
   71,976.72x = 3,988,273,053.27
5. Step 5: Solve for x
   x = 3,988,273,053.27/71,976.72
6. Step 6: Final answer
   x = 55,410.60