Finding the Fourth Proportional to 89,593.42, 123,650.34 and 57,854.58

Step by Step Solution

1. Step 1: Write the proportion equation
   89,593.42 : 123,650.34 = 57,854.58 : x
2. Step 2: Convert to fraction form
   89,593.42/123,650.34 = 57,854.58/x
3. Step 3: Cross multiply
   89,593.42x = 123,650.34 × 57,854.58
4. Step 4: Simplify right side
   89,593.42x = 7,153,738,487.56
5. Step 5: Solve for x
   x = 7,153,738,487.56/89,593.42
6. Step 6: Final answer
   x = 79,846.70