Finding the Fourth Proportional to 89,399.05, 123,395.52 and 51,180.01

Step by Step Solution

1. Step 1: Write the proportion equation
   89,399.05 : 123,395.52 = 51,180.01 : x
2. Step 2: Convert to fraction form
   89,399.05/123,395.52 = 51,180.01/x
3. Step 3: Cross multiply
   89,399.05x = 123,395.52 × 51,180.01
4. Step 4: Simplify right side
   89,399.05x = 6,315,383,947.56
5. Step 5: Solve for x
   x = 6,315,383,947.56/89,399.05
6. Step 6: Final answer
   x = 70,642.63