Finding the Fourth Proportional to 89,775.54, 123,896.59 and 51,541.31

Step by Step Solution

1. Step 1: Write the proportion equation
   89,775.54 : 123,896.59 = 51,541.31 : x
2. Step 2: Convert to fraction form
   89,775.54/123,896.59 = 51,541.31/x
3. Step 3: Cross multiply
   89,775.54x = 123,896.59 × 51,541.31
4. Step 4: Simplify right side
   89,775.54x = 6,385,792,734.02
5. Step 5: Solve for x
   x = 6,385,792,734.02/89,775.54
6. Step 6: Final answer
   x = 71,130.65