Finding the Fourth Proportional to 89,373.51, 123,289.82 and 57,074.18

Step by Step Solution

1. Step 1: Write the proportion equation
   89,373.51 : 123,289.82 = 57,074.18 : x
2. Step 2: Convert to fraction form
   89,373.51/123,289.82 = 57,074.18/x
3. Step 3: Cross multiply
   89,373.51x = 123,289.82 × 57,074.18
4. Step 4: Simplify right side
   89,373.51x = 7,036,665,198.33
5. Step 5: Solve for x
   x = 7,036,665,198.33/89,373.51
6. Step 6: Final answer
   x = 78,733.23