Finding the Fourth Proportional to 57,173.62, 85,068.42 and 55,745.14

Step by Step Solution

1. Step 1: Write the proportion equation
   57,173.62 : 85,068.42 = 55,745.14 : x
2. Step 2: Convert to fraction form
   57,173.62/85,068.42 = 55,745.14/x
3. Step 3: Cross multiply
   57,173.62x = 85,068.42 × 55,745.14
4. Step 4: Simplify right side
   57,173.62x = 4,742,150,982.48
5. Step 5: Solve for x
   x = 4,742,150,982.48/57,173.62
6. Step 6: Final answer
   x = 82,942.99