Finding the Fourth Proportional to 95,215.71, 142,843.55 and 28,660.71

Step by Step Solution

1. Step 1: Write the proportion equation
   95,215.71 : 142,843.55 = 28,660.71 : x
2. Step 2: Convert to fraction form
   95,215.71/142,843.55 = 28,660.71/x
3. Step 3: Cross multiply
   95,215.71x = 142,843.55 × 28,660.71
4. Step 4: Simplify right side
   95,215.71x = 4,093,997,418.62
5. Step 5: Solve for x
   x = 4,093,997,418.62/95,215.71
6. Step 6: Final answer
   x = 42,997.08