Finding the Fourth Proportional to 89,688.67, 123,765.81 and 49,401.56

Step by Step Solution

1. Step 1: Write the proportion equation
   89,688.67 : 123,765.81 = 49,401.56 : x
2. Step 2: Convert to fraction form
   89,688.67/123,765.81 = 49,401.56/x
3. Step 3: Cross multiply
   89,688.67x = 123,765.81 × 49,401.56
4. Step 4: Simplify right side
   89,688.67x = 6,114,224,212.82
5. Step 5: Solve for x
   x = 6,114,224,212.82/89,688.67
6. Step 6: Final answer
   x = 68,171.65