Finding the Fourth Proportional to 89,419.37, 123,363.27 and 57,606.75

Step by Step Solution

1. Step 1: Write the proportion equation
   89,419.37 : 123,363.27 = 57,606.75 : x
2. Step 2: Convert to fraction form
   89,419.37/123,363.27 = 57,606.75/x
3. Step 3: Cross multiply
   89,419.37x = 123,363.27 × 57,606.75
4. Step 4: Simplify right side
   89,419.37x = 7,106,557,054.07
5. Step 5: Solve for x
   x = 7,106,557,054.07/89,419.37
6. Step 6: Final answer
   x = 79,474.47