Finding the Fourth Proportional to 89,260.56, 123,170.76 and 51,546.96

Step by Step Solution

1. Step 1: Write the proportion equation
   89,260.56 : 123,170.76 = 51,546.96 : x
2. Step 2: Convert to fraction form
   89,260.56/123,170.76 = 51,546.96/x
3. Step 3: Cross multiply
   89,260.56x = 123,170.76 × 51,546.96
4. Step 4: Simplify right side
   89,260.56x = 6,349,078,238.89
5. Step 5: Solve for x
   x = 6,349,078,238.89/89,260.56
6. Step 6: Final answer
   x = 71,129.72