Finding the Fourth Proportional to 89,181, 123,069.78 and 51,455.25

Step by Step Solution

1. Step 1: Write the proportion equation
   89,181 : 123,069.78 = 51,455.25 : x
2. Step 2: Convert to fraction form
   89,181/123,069.78 = 51,455.25/x
3. Step 3: Cross multiply
   89,181x = 123,069.78 × 51,455.25
4. Step 4: Simplify right side
   89,181x = 6,332,586,297.35
5. Step 5: Solve for x
   x = 6,332,586,297.35/89,181
6. Step 6: Final answer
   x = 71,008.25