Finding the Fourth Proportional to 89,150.82, 123,040.73 and 55,170.25

Step by Step Solution

1. Step 1: Write the proportion equation
   89,150.82 : 123,040.73 = 55,170.25 : x
2. Step 2: Convert to fraction form
   89,150.82/123,040.73 = 55,170.25/x
3. Step 3: Cross multiply
   89,150.82x = 123,040.73 × 55,170.25
4. Step 4: Simplify right side
   89,150.82x = 6,788,188,066.61
5. Step 5: Solve for x
   x = 6,788,188,066.61/89,150.82
6. Step 6: Final answer
   x = 76,142.74