Finding the Fourth Proportional to 123,898.96, 185,820.42 and 57,302.54

Step by Step Solution

1. Step 1: Write the proportion equation
   123,898.96 : 185,820.42 = 57,302.54 : x
2. Step 2: Convert to fraction form
   123,898.96/185,820.42 = 57,302.54/x
3. Step 3: Cross multiply
   123,898.96x = 185,820.42 × 57,302.54
4. Step 4: Simplify right side
   123,898.96x = 10,647,982,049.87
5. Step 5: Solve for x
   x = 10,647,982,049.87/123,898.96
6. Step 6: Final answer
   x = 85,940.85