Finding the Fourth Proportional to 89,358.69, 123,317.06 and 51,121.83

Step by Step Solution

1. Step 1: Write the proportion equation
   89,358.69 : 123,317.06 = 51,121.83 : x
2. Step 2: Convert to fraction form
   89,358.69/123,317.06 = 51,121.83/x
3. Step 3: Cross multiply
   89,358.69x = 123,317.06 × 51,121.83
4. Step 4: Simplify right side
   89,358.69x = 6,304,193,777.42
5. Step 5: Solve for x
   x = 6,304,193,777.42/89,358.69
6. Step 6: Final answer
   x = 70,549.31