Finding the Fourth Proportional to 89,558.74, 123,608.72 and 51,343.94

Step by Step Solution

1. Step 1: Write the proportion equation
   89,558.74 : 123,608.72 = 51,343.94 : x
2. Step 2: Convert to fraction form
   89,558.74/123,608.72 = 51,343.94/x
3. Step 3: Cross multiply
   89,558.74x = 123,608.72 × 51,343.94
4. Step 4: Simplify right side
   89,558.74x = 6,346,558,703.16
5. Step 5: Solve for x
   x = 6,346,558,703.16/89,558.74
6. Step 6: Final answer
   x = 70,864.76