Finding the Fourth Proportional to 115,765.50, 159,705.72 and 67,997.34

Step by Step Solution

1. Step 1: Write the proportion equation
   115,765.50 : 159,705.72 = 67,997.34 : x
2. Step 2: Convert to fraction form
   115,765.50/159,705.72 = 67,997.34/x
3. Step 3: Cross multiply
   115,765.50x = 159,705.72 × 67,997.34
4. Step 4: Simplify right side
   115,765.50x = 10,859,564,142.78
5. Step 5: Solve for x
   x = 10,859,564,142.78/115,765.50
6. Step 6: Final answer
   x = 93,806.57