Finding the Fourth Proportional to 57,743.37, 79,740.88 and 54,598.55

Step by Step Solution

1. Step 1: Write the proportion equation
   57,743.37 : 79,740.88 = 54,598.55 : x
2. Step 2: Convert to fraction form
   57,743.37/79,740.88 = 54,598.55/x
3. Step 3: Cross multiply
   57,743.37x = 79,740.88 × 54,598.55
4. Step 4: Simplify right side
   57,743.37x = 4,353,735,888.52
5. Step 5: Solve for x
   x = 4,353,735,888.52/57,743.37
6. Step 6: Final answer
   x = 75,398.02