Finding the Fourth Proportional to 115,377.28, 159,222.72 and 67,665.04

Step by Step Solution

1. Step 1: Write the proportion equation
   115,377.28 : 159,222.72 = 67,665.04 : x
2. Step 2: Convert to fraction form
   115,377.28/159,222.72 = 67,665.04/x
3. Step 3: Cross multiply
   115,377.28x = 159,222.72 × 67,665.04
4. Step 4: Simplify right side
   115,377.28x = 10,773,811,717.71
5. Step 5: Solve for x
   x = 10,773,811,717.71/115,377.28
6. Step 6: Final answer
   x = 93,378.97