Finding the Fourth Proportional to 68,960.72, 95,133.24 and 58,996.20

Step by Step Solution

1. Step 1: Write the proportion equation
   68,960.72 : 95,133.24 = 58,996.20 : x
2. Step 2: Convert to fraction form
   68,960.72/95,133.24 = 58,996.20/x
3. Step 3: Cross multiply
   68,960.72x = 95,133.24 × 58,996.20
4. Step 4: Simplify right side
   68,960.72x = 5,612,499,653.69
5. Step 5: Solve for x
   x = 5,612,499,653.69/68,960.72
6. Step 6: Final answer
   x = 81,386.91