Finding the Fourth Proportional to 89,145.46, 123,013.74 and 51,412.42

Step by Step Solution

1. Step 1: Write the proportion equation
   89,145.46 : 123,013.74 = 51,412.42 : x
2. Step 2: Convert to fraction form
   89,145.46/123,013.74 = 51,412.42/x
3. Step 3: Cross multiply
   89,145.46x = 123,013.74 × 51,412.42
4. Step 4: Simplify right side
   89,145.46x = 6,324,434,124.02
5. Step 5: Solve for x
   x = 6,324,434,124.02/89,145.46
6. Step 6: Final answer
   x = 70,945.11