Finding the Fourth Proportional to 89,630.24, 123,687.15 and 51,388.52

Step by Step Solution

1. Step 1: Write the proportion equation
   89,630.24 : 123,687.15 = 51,388.52 : x
2. Step 2: Convert to fraction form
   89,630.24/123,687.15 = 51,388.52/x
3. Step 3: Cross multiply
   89,630.24x = 123,687.15 × 51,388.52
4. Step 4: Simplify right side
   89,630.24x = 6,356,099,581.52
5. Step 5: Solve for x
   x = 6,356,099,581.52/89,630.24
6. Step 6: Final answer
   x = 70,914.68