Finding the Fourth Proportional to 89,463.56, 123,459.96 and 51,223.69

Step by Step Solution

1. Step 1: Write the proportion equation
   89,463.56 : 123,459.96 = 51,223.69 : x
2. Step 2: Convert to fraction form
   89,463.56/123,459.96 = 51,223.69/x
3. Step 3: Cross multiply
   89,463.56x = 123,459.96 × 51,223.69
4. Step 4: Simplify right side
   89,463.56x = 6,324,074,101.15
5. Step 5: Solve for x
   x = 6,324,074,101.15/89,463.56
6. Step 6: Final answer
   x = 70,688.83