Finding the Fourth Proportional to 89,819.91, 123,945.81 and 51,552.54

Step by Step Solution

1. Step 1: Write the proportion equation
   89,819.91 : 123,945.81 = 51,552.54 : x
2. Step 2: Convert to fraction form
   89,819.91/123,945.81 = 51,552.54/x
3. Step 3: Cross multiply
   89,819.91x = 123,945.81 × 51,552.54
4. Step 4: Simplify right side
   89,819.91x = 6,389,721,327.86
5. Step 5: Solve for x
   x = 6,389,721,327.86/89,819.91
6. Step 6: Final answer
   x = 71,139.25