Finding the Fourth Proportional to 89,669.34, 123,744.06 and 51,430.38

Step by Step Solution

1. Step 1: Write the proportion equation
   89,669.34 : 123,744.06 = 51,430.38 : x
2. Step 2: Convert to fraction form
   89,669.34/123,744.06 = 51,430.38/x
3. Step 3: Cross multiply
   89,669.34x = 123,744.06 × 51,430.38
4. Step 4: Simplify right side
   89,669.34x = 6,364,204,028.54
5. Step 5: Solve for x
   x = 6,364,204,028.54/89,669.34
6. Step 6: Final answer
   x = 70,974.14