Finding the Fourth Proportional to 89,687, 123,768.06 and 51,983.12

Step by Step Solution

1. Step 1: Write the proportion equation
   89,687 : 123,768.06 = 51,983.12 : x
2. Step 2: Convert to fraction form
   89,687/123,768.06 = 51,983.12/x
3. Step 3: Cross multiply
   89,687x = 123,768.06 × 51,983.12
4. Step 4: Simplify right side
   89,687x = 6,433,849,915.15
5. Step 5: Solve for x
   x = 6,433,849,915.15/89,687
6. Step 6: Final answer
   x = 71,736.71